E/1 U Min Survey HRI
E/2 Vela Pulsar Region IPC
E/3 3C390.3 HRI
E/4 S.S. Cygni IPC
E/5 Eta Carina HRI
E/6 Cygnus A HRI
E/7 Vela Pulsar Region HRI
E/8 A1367 IPC
E/9 U Min Survey HRI
E/10 NCG2992 HRI
E/11 M87 IPC
E/12 Eta Carina HRI
E/13 O Association in Cygnus IPC (for improved slide see E/262)
E/14 3C273 HRI
E/15 A1809 IPC 1/30/79
E/16 A1890 IPC 1/30/79
E/17 A2063 1000 sec IPC 1/30/79
E/18 A2625 IPC 1/30/79
E/19 B2 1225+31 Z=2.2 2200 sec IPC 1/30/79
E/20 Eta Carinae IPC 5 1/30/79
E/21 M31 Center HRI 1/30/79
E/22 M31 Center
E/23 MKN421 BL Lac Object HRI
E/24 M31 NE Region IPC
E/25 M31 Center IPC
E/26 MKN205 5000 sec HRI
E/27 MKN421 + Object HRI
E/28 MKN205 5000 sec HRI
E/29 3C273 HRI (1-4 count cell zeroed)
E/30 3C273 HRI
E/31 3C47 (+star) 2500 sec IPC
E/32 3C279 2500 sec IPC
E/33 3C295 IPC
E/34 Virgo, M84, M86, Seq. 278 IPC
E/35 Virgo Seq. 280 IPC
E/36 Vela Pulsar Seq. 782 HRI 20 arc sec
E/37 M31, Seq. 579, Entire Field HRI
E/38 M31 Center b. Blue and White Colors HRI
E/39 b. Eta Carinae, Blue and White, IPC
E/40 Configuration of the Einstein Observatory
E/41 Sensitivity of Einstein imaging instruments
E/42 Wolter type 1 X-ray telescope geometry
E/43 Measured mirror/HRI system response at 44 Angstroms
E/44 Effective area HRI ~2 with no filters, with Be filter, and with Al filter. Photons which scatter from the mirror with angles greater than 6" have not been included, thus this efficiency is for 12" pixels.
E/45 HRI-OGS effective area, 500 line/mm grating. Solid line is theoretical prediction, points are calibration data.
E/46 HRI-OGS effective area, 1,000 line/mm grating. Solid line is theoretical prediction, points are calibration data.
E/47 Theoretical effective on-axis area of IPC-A. Points are calibration data.
E/48 Theoretical effective on-axis area of IPC-B. Points are calibration data.
E/49 SSS detector efficiency
E/50 SSS effective area
E/51 Draco Deep Survey; sequence 29-Blue; IPC
E/52 Draco Deep Survey; sequence 29-Red
E/53 Draco Deep Survey; sequence 29-yellow; IPC
E/54 Draco Deep Survey; sequence 29-projected
E/55 Draco Deep Survey (blue) no caption
E/56 a. A1367 (red; no caption)
E/56 b. A1367 - projected
E/57 A1795 - projected
E/58 A1795 - no caption
E/59 A85- no caption
E/60 A85 - projected - no caption
E/62 Consortium Institutions in HEAO-2 Program
E/63 Draco Deep Survey IPC Sequence 29-green
E/64 Draco Deep Survey IPC Sequence 29-red
E/65 QSO B2 1225+31 Z=2.2 IPC Seq. 542
E/66 3C273 HPD 569 80000 sec
E/67 Cyg A IPC Seq. 473
E/68 3C273 HPD 569 80000 sec
E/69 Virgo Cluster IPC 280.23
E/70 QSO 1223+252 and 3 new sources. Seq. 565 IPC 0078463
E/71 3C273 HDP 569 80000 sec
E/72 Perseus Cluster, NGC1275 IPC 283.7
E/73 Cas A H713.4
E/74 A1913 Cluster and Star IPC Seq. 140
E/75 Deep Field near 3C273 - 2 faint sources detected in 80000 sec
E/76 Cluster around PKS0116+08 Z=0.5936 1270.3 6688 sec
E/77 Virgo Cluster, M87 IPC 277.6
E/78 A2009 Cluster Z=0.157 IPC Seq. 3582 2245 sec
E/79 Tycho SN H-714.10
E/80 A348 Cluster Z=0.274 1229.3 3969 sec
E/81 Cen A NGC5128 IPC Seq. 447
E/82 Virgo Cluster IPC 279.9
E/83 NGC4631 IPC Seq. 4711 IPC 0078644
E/84 A2147 Cluster IPC Seq. 293
E/85 Virgo Cluster IPC Seq. 280
E/86 VI Cygni O Stars IPC Seq. 5025 (red)
E/87 VI Cygni O Stars IPC Seq. 5025 (green)
E/88 VI Cygni O Stars IPC Seq. 5025 (blue)
E/89 Draco Survey HRI Seq. 90 47000 sec (red)
E/90 Draco Survey HRI Seq. 90 47000 sec (green)
E/91 Draco Survey HRI Seq. 96 (green)
E/92 Draco Survey HRI Seq. 96 (red standard)
E/93 Draco Survey HRI Seq. 96 (red special)
E/94 M31 Center HRI Seq. 579.6 (2 arc sec per pixel; red special)
E/95 M31 Center HRI Seq. 579.6 (1 arc sec per pixel; red special)
E/96 M31 Center HRI Seq. 579.6 (1 arc sec per pixel; red standard)
E/97 M31 NE Region IPC Seq. 575 (red special)
E/98 M31 NE Region IPC Seq. 575 (no back)
E/99 M31 Center IPC Seq. 574.6 (no back)
E/100 M31 Center IPC Seq. 574.6 (red special)
E/101 SN1006 600 arc secs - Red
E/102 SN1006 600 arc secs - Green
E/103 Cas A Supernova Remnant - 60 arc secs - Red
E/104 Cas A Supernova Remnant - 60 arc secs - Green
E/105 Tycho's Supernova 120 arc secs - Green
E/106 Tycho's Supernova 120 arc secs - Red
E/107 NGC5457 M101 90 arc secs
E/108 NGC1097 90 arc secs
E/109 LMC Field (SNR + ?) 90 arc secs
E/110 Orion Nebula 90 arc secs - Green + calibration source
E/111 Orion Nebula 90 arc secs - Red + calibration source
E/112 Crab Nebula - 60 arc secs - Blue
E/113 Crab Nebula - 60 arc secs - Red
E/114 Crab Nebula - 60 arc secs - Green
E/115 Eta Carina - 60 arc secs
E/116 HEAO-2 at Launch
E/117 HEAO-2 Artist's Conception
E/118 HEAO-B Experiment Configuration (COLOR)
E/119 HEAO-2 at Launch (Close-up hooked-up)
E/120 HEAO-2 at Launch (non-close-up hooked-up)
E/122 Central Region of the Great Nebula in Andromeda M31 60 arc sec (no exact slide - compatible with slide E/22)
E/123 Quasar 3C273 and New Quasar at Z=2.6 (no exact slide - compatible with slide E/75)
E/124 Einstein HEAO-2 Limit (Graph)
E/125 Eta Carinae
E/126 Composite of Cas A
E/127 Composite of Tycho's Supernova
E/128 X-ray Source in the Globular Cluster M15 (NGC7078)
E/129 HEAO-B in Lab
E/130 Density evolution for quasars
E/131 Variability of 3C273
E/132 Variability of OX 169
E/133 Contribution of quasars to the X-ray background
E/134 Spectral extrapolation from optical to X-ray for selected quasars and Seyferts
E/135 Optical to X-ray energy slope for QSO's
E/136 Optical local luminosity function for Seyferts and QSO's
E/137 Preliminary luminosity distribution for M31
E/138 X-ray luminosity vs. redshift
E/139 Crab Nebula, grating 500 lines/mm, OGS
E/140 Her X-1, grating 500 lines/mm, OGS
E/141 Her X-1, grating 1000 lines/mm, OGS
E/142 48" Schmidt red plate for Eridanus deep survey
E/143 Virgo Cluster Seq. 279
E/144 Vela Supernova Remnant IPC 30 arc min (composite)
E/145 VI Cygni O Star Association IPC 10 arc min (composite) yellow
E/146 Deep Survey Eridanus HRI
E/147 Cyg A HRI 16,000 sec
E/148 Deep Survey Draco HRI all
E/149 The Great Nebula in Andromeda M31 (IPC)
E/150 Virgo Cluster Seq. 281
E/151 A85
E/152 Cyg A HRI Be Filter (6000 sec; red background)
E/153 A1367
E/154 Cyg A HRI 16000 secs (with projection)
E/155 Vela Pulsar PSR 0833-45
E/156 Virgo Cluster Seq. 280
E/157 A2009 D=5, R=1
E/158 Cyg A HRI Be Filter 6000 sec (with projection)
E/159 M15 Globular Cluster
E/160 QSO 0537-289 Z=3.1
E/161 Cen A IPC 13125 sec
E/162 M31 Northeast Region
E/163 Cyg A HRI 10,000 sec (without projection)
E/164 Cen A Count vs. Time HRI Detector
E/165 NGC315 DW0055+30 IPC
E/166 Cen A 13125 sec IPC
E/167 Cen A Count vs. Time IPC Detector
E/168 VI Cygni O Star Association IPC 10 arc min (composite) Green
E/169 Eta Carinae 30 arc sec (Red)
E/170 M31 Center Region 30 arc sec (Red)
E/171 Hercules X-1 OGS Observation
E/172 Virgo Cluster M84, M86
E/173 QSO 0420-388 Z=3.1
E/174 Cluster around 3C295
E/175 MKN205/NGC4139
E/176 M31 Center Region 30 arc sec (black background)
E/177 M31 Center Region 30 arc sec (Green background)
E/178 Cyg A HRI 10,000 sec (with projection)
E/179 Cluster around PKS 0116+08
E/180 QSO 4C11.50 A/B 6 arc sec.
E/181 QSO in Eridanus Z=2
E/182 GO star in Eridanus
E/183 4m plate in Eridanus (Revised; see E/208)
E/184 4m plate in Draco (Revised; see E/207)
E/185 Eta Carinae graph
E/186 QSO in Eridanus Z=.5
E/187 Cluster Flux vs. Redshift
E/188 X-ray Burst from the Globular Cluster Terzan 2 (2.5 min. integrations before, during, and after the burst)
E/189 EINSTEIN (HEAO-2) Limit (Revised)
E/190 Table 2 - Distant Cluster Sizes
E/191 Eridanus plotted
E/192 Draco plotted
E/193 Eta Carinae
E/194 Eta Carinae (overlay)
E/195 Sources positions in M31 Central Region
E/196 Sources and Fields in M31
E/197 M31 Sources and HI emission
E/198 HI emission in M31
E/199 M31 Source Position 0h 39m 37.32s, 40 deg 1' 42.4"
E/200 M31 source on Dust Lane
E/201 M31 source position 0h 40m 27.08s, 41 deg 1' 42.4"
E/202 X-ray source and Burster in the Globular Cluster Terzan 2 Einstein Observation ~2" (radius) Location
E/203 Mirror Inspection at Perkin-Elmer
E/204 Quasar 0.5-4.5 keV X-ray Luminosity in erg s(-1)
E/205 Quasar alpha_ox Optical X-ray Energy slope
E/206 OX169 HRI cts/1000 s
E/207 Draco 4m plate Revised (see old E/184)
E/208 Eridanus 4m plate Revised (see old E/183)
E/209 HEAO-B being placed into MSFC Test Chamber
E/210 EINSTEIN Point Response Function for 4 energies
E/211 EINSTEIN Integrated Response on Axis for 4 energies, inner region
E/212 EINSTEIN Integrated Response on axis for 4 energies
E/213 EINSTEIN response at 0.28 keV for 5 incident angles
E/214 EINSTEIN Integrated Point response at 0.28 keV for 5 incident angles, inner region
E/215 EINSTEIN Response at 3.44 keV for 4 incident angles
E/216 EINSTEIN Integrated Response at 3.44 keV for 4 incident angles
E/217 HEAO-B Response Summary Table
E/218 Comparison of EINSTEIN 3C273 Flight Data with 1.49 keV calibration data
E/219 EINSTEIN Integrated Response at 0.57 keV vs. Modified Beckmann Theory
E/220 EINSTEIN Integrated Response at 1.49 keV vs. Approximate Beckmann Model
E/221 EINSTEIN Integrated Response at 2.98 keV vs. Approximate Beckmann Theory
E/222 QSO 0420-3851
E/223 QSO 0537-2840
E/224 Perseus Cluster IPC 5 arc min (center)
E/225 NGC1275 (HRI)
E/226 Draco Finding Charts (1)
E/227 Draco Finding Charts (2)
E/228 Eridanus Finding Charts (1)
E/229 Eridanus Finding Charts (2)
E/230 HRI Observation of Sirius
E/231 Optical Picture of Eridanus HRI sources
E/232 Cen A HRI Radial Surface Brightness
E/233 Cen A X-ray/Optical Jet Contours
E/234 Cen A IPC Azimuthal distribution
E/235 Cen A IPC Image and Radio Lobes
E/236 Log N-Log S Optical Data for Quasars (Braccesi et al.)
E/237 Log N-Log S Optical Quasars Showing Fit with Luminosity Evolution
E/238 Quasar X-ray Luminosity vs. Redshift, a/o 6/ 1/79
E/239 K-corrected X-ray Fluxes vs. Optical Fluxes for Quasars
E/240 Quasar X-ray Optical Slope vs. Redshift a/o 6/1/79
E/241 Quasar X-ray Optical Slope vs. Optical Luminosity, a/o 6/1/79
E/242 Computed Contribution of Quasars to the X-ray Background (somewhat out of date)
E/243 M31 X-ray Luminosity Distribution
E/244 ZW1615+35
E/245 M82 1 arc min
E/246 NGC6814 Time Variability, 10,000 sec bins
E/247 NGC4151 HRI Radial Distribution
E/248 NGC6814 Hardness Ratio vs. Intensity
E/249 3C120 (No) Time Variations, 10,000 sec bins
E/250 NGC6814 Time Variations, 2,000 sec bins
E/251 3C120 (No) Time Variations, 1,000 sec bins
E/252 Perseus Cluster (NGC1275) IPC Surface Brightness Distribution
E/253 Perseus Cluster (NGC1275) IPC Image and Hardness Ratio (40x40) arc sec bins
E/254 NGC1275 HRI Surface Brightness Distribution
E/255 NGC1275 HRI Surface Brightness Distribution (central 12 arcsec)
E/256 Mkn 205/NGC4319, HRI
E/257 NGC4151, HRI
E/258 NGC4151, IPC
E/259 quasar B2 1225+31
E/260 HRI-Mkn 509, Mkn 79, NGC6814, NGC4151
E/261 NGC6814, Seyfert Variability Study, IPC
E/262 VI Cygni O Star Association, IPC
E/263 W44
E/264 W44 and Optical
E/265 Crab X-ray and Optical
E/266 IC 443 east
E/267 IC 443 west
E/268 IC 443 X-ray and Optical
E/269 Theoretical grating spectra 10^6 deg
E/270 Theoretical grating spectra 10^6 deg
E/271 OGS Capella
E/272 OGS Sco X-2
E/273 Tycho X-ray/Radio Overlay
E/274 Vela Pulsar-Radial Surface Brightness
E/275 Vela Pulsar composite Spectrum
E/276 VI Cygni OB Star Identifications
E/277 IPC Perseus, center on IC310
E/278 IPC Quasar GQ Com
E/279 EINSTEIN Observatory X-ray Burst from Terzan 2
E/280 Cas A SNR IPC Spectral Ratios
E/281 M31 Sources near Nucleus
E/282 M31 sources and HI
E/283 M31 Sources on Optical Galaxy
E/284 M31 X-ray Luminosity DIST
E/285 Log N-Log S
E/286 A1367 Optical and Contours
E/287 A85 Optical and Contours
E/288 Virgo Optical and Contours
E/289 Crab SNR X-ray Spectrum - HEAO-B EINSTEIN SSS
E/290 Cas A X-ray Spectrum SSS
E/291 Cas A SNR Spectral Ratios
E/292 Limb Brightening in Tycho's SNR
E/293 Cas A SNR-IPC Pulse Height Spectrum
E/294 Radio, Optical and X-ray Structure of Remnant of Tycho SNR (HEAO-1 map)
E/295 SN1006 - radio map
E/296 SN1006 IPC m.e.m. intensity contours
E/297 SN1006 IPC m.e.m. three-dimensional plot
E/298 SN1006 IPC m.e.m. edge detection
E/299 IPC fields of view in Virgo Survey
E/300 3C273 Spectrum - Radio, Optical, X-ray Sensitivities
E/301 HR Diagram (Vaiana group) not final
E/302 L_x/L_v ratios of (and B stars and of K and M Stars (Vaiana group) not final
E/303 X-ray Contour plates of 12 clusters of galaxies on PSS
E/304 HRI Cas A
E/305 HEAO-2 (EINSTEIN) Hardware
E/306 M31 X-ray Images IPC 30,000 sec
E/307 M31 X-ray images IPC 30,000 sec
E/309 Crab Nebula and Pulsar (Red)
E/310 Crab Nebula and Pulsar (Green)
E/311 IPC image of M86 in Virgo (Seq. 4311)
E/312 IPC image of M86/M84 field in Virgo (seq. 278) green
E/313 IPC image of double clusters (Sco 627-54, A98, A115, A1750)
E/314 IPC image of M86/M84 field in Virgo (Seq. 278) red
E/315 HRI images of NGC1275 and cD galaxy in A2199
E/316 Deconvolution of IPC images of A115 and A98
E/317 IPC image and deconvolution of A399
E/318 Deep Survey Log N-Log S
E/319 Seyfert Galaxy Balmer Line Doppler Widths vs. X-ray Lum.
E/320 ESO 113 IG45 Optical Spectrum
E/321 HEAO-1. A-2. Mushotsky et al. 1979; FW Zl vs alpha_x
E/322 ESO 113 - H beta Profile
E/323 4 H alpha profiles (Mkn 509, NGC5548, Pic A, Mkn 541)
E/324 ESO 113 - IG45 - H alpha profile
E/325 NGC6814 H beta
E/326 NGC3227 and NGC6814 H alpha profiles
E/327 NGC6814 H alpha
E/328 NGC3227 H alpha
E/329 NGC6814 - deblended H alpha
E/330 NGC3227 - deblended H alpha
E/331 Count rate (upper curve) and hardness ratio (lower curve) for Proxima Centauri observations 1979 March 6 and 7 with the IPC. These data are provided by guest observers, B.~Haisch and J. Linsky. See Haisch, Linsky, Harnden, Rosner, Seward, and Vaiana (1980) for details.
E/332 Vela Pulsar with Spectrum (IPC)
E/333 Eta Carinae, HRI follow up
E/334 Crux O BI (IPC)
E/335 Alpha Centauri A and B (HRI)
E/336 Period-synchronous images of the Crab Nebula showing the pulsar period divided into 10 equal phase intervals.
E/337 Fig. 1b Haisch et al.~1980. Locations of the three detected X-ray sources superposed on an ESO plate of the Proxima Centauri field. Sources 2 and 3 remain unidentified.
E/338 3C295 Model Summary
E/339 3C295 Radial Surface Brightness Hyd. Fits
E/340 3C295 Radial Surface Brightness Iso. Fits
E/341 3C295 HRI Contours on blue galaxies
E/342 3C295 HRI contours on red galaxies
E/343 3C295 Stripping Calculation
E/344 3C273 HRI and MPC Variability
E/345 M31
E/346 M31
E/347 M31
E/348 Hardness Ratio of X-ray Bright Quasars
E/349 Hardness ratio vs. redshift for X-ray Bright QSO's
E/350 alpha_ox{effective} for Quasars
E/351 Cyg X-1 Nov. 18, 1978
E/352 The EINSTEIN Observatory Telescope - focusing diagram (from Scientific American February 1980)
E/352A EINSTEIN Observatory - Diagram
E/353 Comparison of sensitivities of astronomical instruments operating in various parts of the electromagnetic spectrum (Scientific American, February 1980)
E/354 Ratio of X-ray Emission to Visible Emission with EINSTEIN. Dwarfs and Subdwarfs (Scientific American, February 1980)
E/355 Ratio of X-ray Emission to Visible Emission with EINSTEIN. Subgiants, giants, and supergiants (Scientific American, February 1980)
E/356 Andromeda Galaxy M31 marked to show two areas imaged by EINSTEIN (Scientific American, February 1980)
E/357 Wide-angle X-ray view of M31. When analyzed closely at least 20 discrete X-ray sources outside the overexposed. nucleus of the galaxy are revealed (Scientific American, February 1980)
E/358 Narrow angle X-ray view of M31 showing the center of the galaxy. Nucleus of galaxy contains about 18 discrete sources (Scientific American, February 1980)
E/359 Quasar with redshift of 3.1, one of the most distant quasars imaged with EINSTEIN. QSO 0420-388 is the brightest object (Scientific American, February 1980)
E/360 Quasar with redshift of 3.1 one of the most distant quasars imaged by EINSTEIN. Optical photograph made with 1.2m Schmidt telescope on Palomar; quasar is marked by a reticle. (Scientific American, February 1980)
E/361 X-ray Contours (HRI) of NGC1275 and A2199 on optical photograph
E/362 Summary Table of Parameters of Clusters
E/363 A262 - X-ray contours on optical photograph.
E/364 Table of Parameters of Unevolved Clusters
E/365 A2199 - IPC and HRI contours on optical photograph
E/366 Contours of cD clusters
E/367 Contours of A399 and A401
E/368 Contours SCO627, A98, A401, A399, A115, A1750 and Simulation
E/369 Contours of M86 and M84 (IPC)
E/370 Contours of M86 (HRI)
E/371 IPC Spectrum of M84 and M86
E/372 Virgo Cluster Schematic
E/373 M84 Radial Distribution (HRI)
E/374 Radial Distribution of cD Clusters
E/375 A399 Deconvolution
E/376 Table of Coma type cluster parameters
E/377 Table of cD cluster parameters
E/378 Radial Distribution of M87, A262 and A2199
E/379 Radial Distribution of Coma-type clusters
E/380 4m KPNO Blue in U. Minor with Very Deep Survey Sources marked
E/381 Finding Chart for U. Minor Sources 2 galaxies 21^m
E/382 Finding Chart for U. Minor Source QSO
E/383 U. Minor Very Deep Survey Summary
E/384 U. Minor HRI Very Deep Survey
E/385 Crab et al., blue
E/386 M31 SW IPC Field
E/387 M31 IPC Composite (Logit)
E/388 M31 IPC Composite Fixcol
E/389 M31 IPC Center Field Seq. 574, 4490 comparison
E/390 M31 HRI Seq. 579, 4479 comparison
E/391 M31 HRI Seq. 579, 4479 comparison Nuclear Region
E/392 M31 HRI Data and Deconvolution
E/393 M31 Blue light and 2000A (J.M. Deharverg, et al.)
E/394 M31 UV, visible light, comparison Galaxy w/bar
E/395 M31 X-ray sources and visible light January 1980
E/396 M31 X-ray sources and HI snap of Emerson January 1980
E/397 M31 X-ray sources and visible light, Central region (Jan. 1980)
E/398 M31 X-ray sources and Baade and Arp OB Associations (deprojected) Jan., 1980)
E/399 N1291 Ring Galaxy (J. Gallagher et al.) 4m plate
E/400 M33 Nucleus, Optical (J. Gallagher)
E/401 M83 IPC
E/402 M83 IPC Contours on visible light
E/403 M82 HRI
E/404 M82 HRI contours on H alpha
E/405 N253, Optical
E/406 N253, HRI
E/407 N253, Optical and HRI sources Jan. 1980
E/408 N253, HRI data and deconvolution
E/409 N253 HRI contours, central region and central light
E/410 M81 visible Nuclear X-ray source and star indicated
E/411 N2403 IPC
E/412 N2403 Visible and IPC source positions (one source and star)
E/413 N1313 IPC
E/414 N1313 visible and IPC positions
E/415 Galactic Center IPC Data
E/416 Galactic Center IPC data and deconvolution (dark exposure)
E/417 Galactic Center IPC data and deconvolution (light exposure)
E/418 Galactic center IPC contours vs. 10.7 GHz map of Downes, et al.
E/419 X-ray contours of SC0627, A98, A115 and A1750
E/420 Simulation of Clustering taken from White
E/421 X-ray Contours of A2666
E/422 X-ray image of A1413
E/423 X-ray contours of A2147
E/424 X-ray contours of A2319
E/425 X-ray contours of NGC4151
E/426 X-ray image of A1795
E/427 X-ray contour on optical fields for 4 double clusters: SCO627-54, A98, A115, A1750
E/428 Proxima Cen, flare and steady (Greenit)
E/429 HR Diagram of Detected Sources (12/79) from Vaiana et al. 1980
E/430 ``Canonical Coronal Scenario" from Vaiana (1980)
E/431 Average Stellar Surface Flux vs. Sp. and predicted acoustic flux, from Vaiana et al. (1980)
E/432 Alpha Cen HRI and Prox. Cent Flare IPC, from Golub et al (1980)
E/433 Stellar X-ray Luminosities for (a) Main Sequence and (b) Giants and S.G., from Vaiana et al. (1980)
E/434 Alpha Cen, IPC and HRI (color)
E/435 Eta Carina, 7700 sec IPC (greenit)
E/436 Eta Carina, 12000 sec HRI, center (color)
E/437 Eta Carina, 12000 sec HRI (greenit)
E/438 Cyg OB2, 13000 sec HRI (color)
E/439 VI Cygni, IPC (color)
E/440 Cyg OB2, 13,000 sec HRI (greenit)
E/441 Cru OB1, 1900 sec IPC (color)
E/442 Orion Trapezium, 3300 sec HRI (color)
E/443 Orion Trapezium, 3300 sec HRI (greenit)
E/444 Vega (AOV), 1050 sec HRI (Greenit)
E/445 Vega Variability, HRI and IPC (greenit)
E/446 SAO 224202 and SAO 224234, 12,000 sec IPC (greenit)
E/447 SAO 985976 and Mkn 421, 10,700 sec HRI (color)
E/448 Rho Psc and DM+18 193, 1600 sec IPC (greenit)
E/449 Nu 2 Col, SAO 180610 + 170631, 25,000 sec IPC (greenit)
E/450 Nu 2 Col, SAO 180610 + SAO 170631, 25,000 sec IPC (color)
E/451 HR 1436 (F4V), 57,000 sec IPC (color)
E/452 Alpha Tri (F6IV), 2400 sec IPC (color)
E/453 Eta Boo (GOIV), 1800 sec IPC (color)
E/454 Sirius (DA+A1V), 1900 sec IPC (color)
E/455 PI(1) UMa (GO V) 1900 sec IPC (greenit)
E/456 Iota Per (G4V), 12,000 sec IPC (greenit)
E/457 HD075732, 22,700 sec IPC (color)
E/458 Alpha Cen, 10,600 sec IPC (color)
E/459 Alpha Cen, 1100 sec HRI (greenit)
E/460 40 Eri, 3700 sec IPC (color)
E/461 EQ Vir (K5 Ve) 6000 sec IPC (greenit)
E/462 DM+36 2322, 2100 sec IPC (color)
E/463 UV Ceti (M5, 5 Ve), 1700 sec IPC (color)
E/464 EQ Peg (dM4e + dM63), 2580 sec IPC (color)
E/465 YZ CMi variability, IPC (greenit)
E/466 Beta Per (Algol) 3000 arc sec IPC
E/467 Castor (Alpha Gem) 1900 sec IPC
E/468 HD 93129 HD 93128 12000 sec HRI
E/469 Alpha OPH 1200 sec IPC
E/470 Tau ORI 6400 sec IPC
E/471 Canopus 1800 sec IPC
E/472 Beta Lep 10,500 sec IPC
E/473 M87 (center) HRI Zoom 1 (6" smoothing)
E/474 M87 (HRI) Zoom 1 full field
E/475 M87 HRI Zoom 4
E/476 Ratio of ionizing photons vs. ratio of line strength in AM Her and SS Cyg
E/477 AM Her Composite Spectrum
E/478 SS Cyg Composite Spectrum
E/479 U Gem Average UV Spectrum 29 April 1979
E/480 AM Her Average UV Spectrum March 17, 1979
E/481 U Gem Composite Spectrum
E/482 SS Cyg Average UV Spectrum 17 May 1979
E/483 AM Her Einstein and IUE Light Curves
E/484 SS Cyg in Outburst
E/485 U Gem Einstein Observatory IPC Light Curve
E/486 Crab Nebula X-ray Contours and Optical Continuum
E/487 A1750 Contours
E/488 A98 Contours
E/489 A115 Contours
E/490 Sco 627 Contours
E/491 3-color picture of Cas A: red=optical (KPNO); blue=radio (NRAO); green=X-ray (Einstein)
E/491a Guest Observer proposals vs time
E/491b Guest Observer Program, total proposals and targets vs time
E/492 3-color picture of Tycho's SNR; red=optical (KPNO; blue=radio (NRAO); green=X-ray (Einstein)
E/493 3C295 X-ray contours overlaid on Deep KPNO 4m plate
E/494 A98 Cut through Centers
E/495 A98 X-ray and Galaxy contours
E/496 Radial Distribution of the X-rays and galaxies of the two components of A98
E/497 Cen A - HRI - deconvolved image and original image - August 4, 1979
E/498 Small Magellanic Cloud - position of survey fields and X-ray sources
E/499 Small Magellanic Cloud - Neutral Hydrogen map and X-ray sources
E/500 M31 Einstein data with degrading distribution rho(r) ~1/(1+4 r^2/r_o^2)^{3/2} r_o in caption
E/501 Small Magellanic cloud Mosaic of 40 IPC fields
E/502 LMC Source Positions (CAL)
E/503 LMC Source Luminosity Distribution (CAL)
E/504 M33 Source Positions (CAL)
E/505 NGC247 Source Locations (CAL)
E/506 M101 Source Locations (CAL)
E/507 Normal Galaxy F_x vs. mv (CAL)
E/508 Normal Galaxy L_x vs. L_opt
E/509 M31 Center HRI Sum 579, 4479, 7066
E/510 M31 Center 3 HRI Fields and Sum
E/511 M31 Globular Cluster X-ray Sources
E/512 Galactic X-ray Globular Clusters
E/513 Correlation, M31 Globular Clusters and OB Associations
E/514 M31 Source Luminosity Distribution
E/515 M31 Luminosity Summary
E/516 M31 OB Associations (Baade and Arp)
E/517 M31 Globular Clusters (Sargent et al.)
E/518 M31 X-ray Globular Clusters and OB Associations
E/519 M82 HRI Data and Mem deconvolution
E/520 Images of Four Double Clusters with projection
E/521 3C 273, Observed X-ray flux (~0.25-3.3 keV) vs. blue magnitude
E/522 Distribution of the spectral index between radio and optical frequencies (alpha_rho)
E/523 Maximum likelihood probability distributions of alpha_ox.
E/524 alpha_rho vs. alpha_ox for our sample of 62 radio-loud quasars.
E/525 Distribution of the hardness ratio for 27 quasars.
E/526 Weighted average of the hardness ratio in 4 different redshift bins.
E/527 KS distribution from the modified K-S test vs. level of significance.
E/528 SNR1006 IPC, low energy
E/529 SNR1006 IPC, high energy
E/530 SNR MSH 15-52, IPC
E/531 NGC4156. HRI position overlay on POSS.
E/532 NGC3862. HRI position overlay on POSS.
E/533 NGC3862. HRI radial profile
E/534 NGC3862. Optical spectrum (Mt. Hopkins 60")
E/535 NGC4156. Optical Spectrum (MMT)
E/536 NGC4151. Optical Spectrum (MMT)
E/537 H beta Flux vs. X-ray flux for Seyferts and NGC4156, NGC3862
E/538 (J-H) vs. (H-K) for active galaxies (Glass 1979)
E/539 (H-K) vs. (K-L) for active galaxies (Glass 1979)
E/540 (U-B) vs. (B-V) Sandage mixing curve for galaxy/quasar composite
E/541 Electromagnetic spectrum of NGC3862
E/542 Electromagnetic spectrum of NGC4156
E/543 Quasar alpha_rho vs. alpha_ox plot with NGC3862 and NGC4156
E/544 Cen A. Superposition of IPC contours (thin lines) and radio map (thick lines, from Cooper et al. 1965) showing X-ray emission from middle NE radio lobe.
E/545 Cen A. Superposition of radio map (Christensen et al.~1976) of inner lobes on V plate (Graham, CTIO).
E/546 Cen A. Superposition of IPC contours on deep H plate (Graham, CTIO) showing relation between optical jet and lobe X-ray emission
E/547 Cen A. Superposition of deconvolved IPC contours (thick lines) and HRI contours (thin black and white lines) on V plate (Graham, CTIO). Note jet, ridge below dust lane, through in outer contours along dust lane, and G and M star point sources.
E/548 Cen A. Superposition of deconvolved IPC contours (thick lines) and HRI contours (thin lines) on inner radio lobes (Christensen et al. 1976).
E/549 Cen A. Photograph of central HRI image (right panel) with maximum-entropy deconvolution (left panel).
E/550 Cen A. Contour map of IPC image.
E/551 Cen A. Contour map of maximum-entropy deconvolution of IPC image.
E/552 Radial profile of nucleus source in the HRI with exponential fit (scale height 2.4", dashed line)
E/553 Cen A. Contour map of deconvolved HRI image with seven knots of the jet labeled (A - G).
E/554 Cen A. Profile of HRI jet along P.A. 53 deg, with knots labeled and background level shown (dashed line).
E/555 Light Curve of Cen A nucleus 1969-1980. Data from Beall et al. (1978), Baity et al.~(1980), and Feigelson et al.~(1981).
E/556 Cen A. February 1979 IPC exposure, nucleus in high state.
E/557 Cen A. August 1979 IPC exposure, nucleus in low state.
E/558 Cen A. August 1979 HRI field with projection along jet. SW source is foreground M star.
E/559 Cen A. Blow-up of nucleus and jet (HRI), original and deconvolved image (same as E/497).
E/560 M87, FPCS observation of OVIII (MIT)
E/561 Puppis A, FPCS counts vs energy (MIT)
E/562 M87 - FPCS blends 1-3 (MIT)
E/563 M87 - FPCS blends 4-6 (MIT)
E/564 Puppis A, FPCS counts vs energy (MIT)
E/565 M87, FPCS measured vol. emission measure (MIT)
E/566 Seyfert(?) X-ray flux (MIT)
E/567 Seyfert(?) alpha_Io/beta_ox (MIT)
E/568 Seyfert(?) X-ray Luminosity (MIT)
E/569 Seyfert(?) U-B/B-V (MIT)
E/570 beta_ox for Seyfert (MIT)
E/571 3C295 red and blue galaxies superimposed on 2 lowest X-ray contours
E/572 Tycho SSS
E/573 Puppis A HRI
E/574 NGC4151 SSS Spectrum
E/575 Optical Log N-Log S for QSO's
E/576 M87 Mass Components vs. r
E/577 M87 SSS
E/578 Another Log N-Log S from Einstein data (HEAD/AAS 1980 revised)
E/579 3C295 red and blue galaxy radial distribution
E/580 Einstein medium sensitivity survey: The Log N-Log S for extragalactic sources (Dashed line is the expected Log N-Log S for cluster).
E/581 Temperature Evolution of Distant clusters
E/582 Log N-Log S 1-3 keV Einstein Observatory
E/583 A1367 and Cetus Deep Survey with detected sources
E/584 A1367 Blobs
E/585 Centaurus Cluster, Halo, visible galaxy, gas
E/586 Centaurus Cluster, HRI and IPC contours
E/587 Centaurus Cluster, Temp./Rad. model(1)
E/588 Centaurus cluster, Temp./Rad. model(2)
E/589 Clusters at Different States of Evolution
E/590 Cluster Classification - Table
E/591 Peculiar Galaxies (U-B)-(B-V) diagram
E/592 Peculiar Galaxies Log f_x vs. Log f_R (1400 MHz)
E/593 Peculiar Galaxies - Log f_x/f_b vs. (U-B)
E/594 Peculiar Galaxies - Log f_x vs. Log f_b
E/595 Peculiar Galaxies - flux vs freq - radio to X-ray
E/596 Peculiar Galaxies - flux vs freq - radio to X-ray
E/597 Peculiar Galaxies - Log f_x/f_b vs. T (morphological type)
E/598 Peculiar Galaxies - Log f_x/f_b vs. (B-V)
E/599 alpha_effective/ox versus redshift and versus optical luminosity for the complete sample of 33 3CR quasars.
E/600 Redshift distribution for an X-ray selected sample and an optically selected sample of quasars with m_beta < 17.0.
E/601 Figs. a and b. X-ray variability of QSOs on different timescales (Delta t in seconds). Hatched boxes represent objects for which variability has been detected; the other boxes represent 3 sigma upper limits to variability (White boxes for radio loud QSOs, dotted boxes for radio quiet QSOs). The dashed line corresponds with the maximum theoretical value for the efficiency parameter (Thorne 1974)
E/601 Figs. a and b. X-ray variability of QSOs on different timescales (Delta t in seconds). Hatched boxes represent objects for which variability has been detected; the other boxes represent 3 sigma upper limits to variability (White boxes for radio loud QSOs, dotted boxes for radio quiet QSOs). The dashed line corresponds with the maximum theoretical value for the efficiency parameter (Thorne 1974)
E/602 Quasar optical counts (May 1981)
E/603 M81: L_x/L_Halpha distribution for all AGN in Steiner (1981) with M81 comparison
E/604 M81/3C120 electromagnetic spectra compared, radio-X-ray
E/605 NELGS: photos of NGC1365, 2992, 5506 and 7582
E/606 Columbia LMC sources, 6/81
E/607 M31 Source Positions, 6/81
E/608 M31 Source Positions, 6/81 and Emerson H1 map
E/609 M31 Globular cluster Kolmogorov Test of Sigma N_X vs L alpha/v
E/610 HRI combined exposure center, M31
E/611 X-ray luminosity distributions of the galaxy, LMC, M31, M33 6181
E/612 Columbia 6/81 source positions, M33
E/613 IPC Contours N247, N2403, M81, M83 and M101
E/614 X-ray source positions, N253 6/81
E/615 Columbia/CFA Normal Galaxy Survey, 6/81
E/616 Vela SNR IPC, 37 fields
E/617 Development of Large X-ray Flare in Hyades Cluster Star, Guest Observers at JPL using IPC
E/618 IPC Deep Survey of 1.7 deg Braccesi Field (a)
E/619 IPC Deep Survey of 1.7 deg Braccesi Field (b)
E/620 IPC Deep Survey of 1.7 deg Braccesi Field (c)
E/621 M87 Merged HRI image (zoom 8)
E/622 M87 Merged HRI Image (zoom 8, 12" smooth)
E/623 M87 Merged HRI Image (zoom 8, 1/2' smooth)
E/624 M87 Merged HRI Image (10" gaussian smooth)
E/625 M87 Merged HRI Image (zoom Z, 5" smooth) < 2 contrasts
E/626 M87 Merged HRI Image (Zoom Z, 5" smooth)
E/627 Distribution of axial ratios for 91 Seyfert (solid line) and comparison (dashed line) galaxies. From Keel (1980).
E/628 Complete sample. Distribution in HX and b/a. Data are plotted twice, to show two different divisions into two groups. One the left, O = optically discovered, X = X-ray discovered. On the right, S = Seyfert galaxy, N = NELG.
E/629 Complete sample: Behavior of the sample as a function of axial ratio, b/a.
E/630 -(a) log (OIII/HX) vs. (b/a)
E/631 -(b) log (H beta/HX) vs. (b/a)
E/632 -(c) log (L3.5) vs. (b/a)
E/633 Extended sample: X-ray "hardness ratio" HX/SX plotted against HX. The dotted lines represent the values expected for power laws of slope alpha = 1, 0.5, and 0.0
E/634 Extended sample: OIII/SX against SX Symbols: (black dot) Type 1 Seyfert (circle) Type 2 Seyfert (x in square) NELG (/black dot) 1.5' Intermediate Seyfert In this graph and others, galaxies detected in X-rays have deliberately been drawn as slightly larger symbols than those that have only upper limits.
E/635 Extended sample
E/636 -(a) OIII/HX against HX
E/637 -(b) H beta/HX against HX
E/638 Extended Sample: L10 and L3.5 scaled and plotted against Hx and SX in turn.
E/639 -(a) log (L3.5/HX) vs. Log HX
E/640 -(b) log (L3.5/SX) vs. Log SX
E/641 -(c) log (L10/HX) vs. Log HX
E/642 -(d) log (L10/SX) vs. Log SX
E/643 Infrared spectral index alpha, as a function of (a) HX and b) SX
E/644 -(a) alpha vs. HX
E/645 -(b) alpha vs. SX
E/646 MMT spectrum of BF-116 showing H_beta and H_alpha absorption lines
E/647 MMT spectrum of BF-51 showing broad, permitted emission lines from H gamma, H beta, and MgII as well as the more narrow forbidden lines of NeIII, OII and NeV.
E/648 Histogram vs. blue magnitude for UVX "stellar" objects in the top half and for UVX "extended" objects in the bottom half.
E/649 Number-magnitude relation for quasars selected by UVX criterion and verified spectroscopically.
E/650 MMT spectrum of BF-105 showing broad emission lines from H delta, H gamma, and H beta and forbidden lines from OII and OIII.
E/651 Histogram of 36 IPC sources (flux > ??) 4 x 10^-14 ergs cm^-2} vs. flux; the histogram is incomplete at the lowest X-ray fluxes.
E/652 Lower portion: Values of alpha_ox for X-ray detected quasars and lower limits on alpha_ox for quasars not yet detected in X-rays. Top portion: Maximum likelihood estimate for the differential distribution (alpha_ox).
E/653 Simplified representation of light color pattern observed for source moving away (top) and corresponding light color pattern for source at rest (bottom).
E/654 Visible light picture showing visible light counterparts for 3C47 and X-ray emitting star, at the tips of the two arrows. The star is approx. 5000 times brighter than the quasar in visible light. (Photograph from Palomar Sky Survey)
E/655 Electromagnetic spectrum of 3C273 showing relative intensity in various energy bands (radio, infrared, visible, ultraviolet, X-ray and gamma-ray).
E/656 Radio picture of quasar 3C47. Central sources are located at position of optical and X-ray emission. Radio intensity indicated by concentric circles with greater intensity indicated by closer spacing (Figure adapted from G.G.~Pooley and S.N. Henbest, MNRAS, 169, 477, 1974)
E/657 SSS spectra of NGC4151 illustrating covering factor (Holt et al.~1981)
E/658 Optical spectra showing progression through Seyferts type 1 and 2 via intermediate type (Osterbrock and Koski 1978)
E/659 Optical spectra showing the sequence "Seyfert 1", "Seyfert 1-5", "NELG", and "Seyfert 2"
E/660 Illustration of the "self-shielding" broad line region concept for Seyfert galaxies
E/661 Possible geometric explanations for the increase in efficiency of (OIII) production at low luminosities in the narrow line region of Seyfert galaxies
E/662 M87 Central Region - HRI deconvolution 80000 sec reprocessed
E/663 Balmer decrement (H alpha/H beta) total vs. axial ratio (b/a) for the complete 2A active spiral galaxy sample
E/664 Peculiar galaxies - correlations of X-ray with optical and radio emission
E/665 Peculiar galaxies - log f_x/fB vs. T
E/666 Peculiar galaxies - log f_x/fB vs.~(U-B)
E/667 Peculiar galaxies (a) Histogram of log f_x/f_B for Seyferts (b) Histogram of log f_x/f_B for galaxies
E/668 Peculiar galaxies - radio to X-ray spectra
E/669 Peculiar galaxies - radio to X-ray spectra
E/670 Count rates per 200s and photon counting statistic error bars (1 sigma) are shown for data binned in 200s intervals. The mean (source plus background) rate is 13.8 counts per 200s. The background rate derived from elsewhere in the image and binned on the same time intervals, is shown as the dotted histogram along with a typical 1 sigma error bar.
E/671 The histogram shows the reduced chi^2 values for 20 off-source regions tested for 200s timescale variability and binned into Delta chi^2 nu = 0.2. The dotted line indicates the distribution expected for a non-varying background rate.
E/672 (SI 00) SMITHSONIAN/EINSTEIN SET OF PHOTOGRAPHS Title for SI series
E/673 (SI 01) Title "Vision of Einstein"
E/674 (SI 02) Mayan Observatory, "Caracol" at Chichen-Itza
E/675 (SI-03) Aztec Astronomer from Codex Mendosa
E/676 (SI-04) Multiple Mirror Telescope at Mt. Hopkins, Arizona
E/677 (SI-05) Very Large Array (VLA) of Radio Telescope, New Mexico
E/678 (SI-06) UHURU, the First X-ray Satellite
E/679 (SI-07) The UHURU map of X-ray objects
E/680 (SI-08) The Sun in X-rays
E/681 (SI-09) The Einstein Observatory - Artist's Conception
E/682 (SI-10) Einstein Observatory prepared for Launch
E/683 (SI-11) Optical Expert Prepares Quartz Tube
E/684 (SI-12) Schematic of Grazing Incidence Telescope
E/685 (SI-13) Cutaway view of Einstein and Instruments
E/686 (SI-14) Control Center at the NASA-Goddard Space Flight Center
E/687 (SI-15) Einstein Images Displayed on Video Screen in Data Center at Cambridge, Mass.
E/688 (SI-16) Launch of the HEAO-2, November 13, 1978
E/689 (SI-17) alpha Centauri, a Nearby Double Star
E/690 (SI-18) X-ray stars in the Central Hyades Region
E/691 (SI-19) Optical View of the Eta Carinae Nebula (NGC3372)
E/692 (SI-20) Eta Carinae in X-rays (Wide Angle View)
E/693 (SI-21) Central Region of Eta Carinae in X-rays (High Resolution View)
E/694 (SI-22) Optical Image of Crab Nebula in Taurus
E/695 (SI-23) Crab Nebula in X-rays
E/696 (SI-24) Stroboscopic View of the Crab Nebula Pulsar
E/697 (SI-25) Optical View of the Vela Supernova Remnant
E/698 (SI-26) Vela Supernova Remnant in X-rays
E/699 (SI-27) Detail of Vela Supernova Remnant
E/700 (SI-28) Vela Pulsar
E/701 (SI-29) The Cas-A Supernova Remnant
E/702 (SI-30) Cas-A Supernova Remnant in Radio, Optical and X-rays
E/703 (SI-31) Artist's Conception of a Black Hole
E/704 (SI-32) X-ray Burst from Terzan 2
E/705 (SI-33) Burster at Center of Globular Cluster
E/706 (SI-34) Optical View of Andromeda (M31)
E/707 (SI-35) X-ray View of Andromeda (M31)
E/708 (SI-36) X-ray Source Positions superimposed on Optical View of M31
E/709 (SI-37) Close-up X-ray View of Central Region of M31
E/710 (SI-38) Andromeda (M31) as seen over Time
E/711 (SI-39) Cen A - Optical and Radio Views
E/712 (SI-40) Cen A in X-rays
E/713 (SI-41) Cluster of Galaxies in Virgo
E/714 (SI-42) Virgo Cluster Member Galaxies M84 and M86
E/715 (SI-43) X-ray View of the Central Region Virgo Cluster
E/716 (SI-44) Optical View of the Galaxy M87 in Virgo
E/717 (SI-45) X-ray View of M87
E/718 (SI-46) X-ray View of the Cluster of Galaxies A85
E/719 (SI-47) Optical A85 with X-ray Contours
E/720 (SI-48) X-ray View of Cluster of Galaxies A1367
E/721 (SI-49) Optical A1367 with X-ray Contours
E/722 (SI-50) Optical View of the Perseus Cluster of Galaxies
E/723 (SI-51) Wide-Angle X-ray View of Perseus Cluster
E/724 (SI-52) NGC1275 in Perseus
E/725 (SI-53) NGC1275 and A2199 in X-rays
E/726 (SI-54) X-ray Deep Survey in Draco
E/727 (SI-55) X-ray Deep Survey in Eridanus
E/728 (SI-56) Optical Counterparts of Three Eridanus Sources
E/729 (SI-57) Quasar 3C273
E/730 (SI-58) End - SI Series
E/731 SS433 Jets with scale
E/732 SS433 jets with enhanced background
E/733 SS433 jets
E/734 AM Her August 1980 Low-state IPC spectrum
E/735 AM Her in low-state light curve
E/736 AM Her comparison of 1976 and 1980 low states
E/737 SNR CTB 109
E/738 MSH 15-5(2) Diffuse emission surrounding pulsar and knot
E/739 Tycho SNR, reprocessed data
E/740 SNR MSH 15-5(2)
E/741 IC443 X-ray contours overlaid on optical
E/742 Carina Nebula X-ray contours overlaid on optical
E/743 Tycho SNR, HRI, 4 exposures B and W
E/744 IUE short wavelength spectrum of the z=0.651 quasar. PKS0637-75 (SWP 10832). 'R' marks position of reseau feature.
E/745 alpha_ox versus optical luminosity (l_o) for radio loud quasars adapted from Zamorani (1982). '+' marks the position of PKS0637-75 and 'a' and 'b' mark the observed and the 'power law only' positions of PKS1004+13
E/746 IUE short wavelength spectrum of the z=0.241 quasar PKS1004+13 (SWP 10850). 'R' and 'H' mark the position of reseaux and of cosmic ray ('hit') features respectively.
E/747 Composite IR to X-ray observed spectra for the 2 quasars. (a) PKS0637-75: the arrow labelled ``OBS, EM'' shows the K correction to apply to put the spectrum in the emitted frame. JHK photometry is from Hyland and Allen (1982). UBV photometry is from Adam (1978). IUE (SWP) is the UV data presented here and IPC shows the best fit power law to the IPC data. Note that the systematic error on this slope is + 1. The dotted line shows the observed (galactic) cut-off and the dashed line shows the higher energy power law extrapolated to the lower end of the Einstein energy range. The cross labelled ``(MPC)'' shows the 2-10 keV flux measured by the MPC during the earlier observation. (b) PKS1004+(4C13.41). The IR photometry and Oke scanner optical continuum labelled ``N'' are from Neugebauer et al.~(1979). The optical photometry labelled ``F, 1, 2, 3'' are from A. Smith (Univ. of Florida, private communication). ``Z'' is the extrapolated flux at 2500A used by Zamorani et al.~(1981).
E/748 NGC5204 - comparison of f_x/f_B with those of peculiar galaxies
E/749 NGC5204 - cross cut of the IUE spectrum
E/750 NGC5204 SWP IUE spectrum
E/751 NGC5204 3-point smoothed Si IV and CIV lines
E/752 X-ray Observations of the Antennae (X-ray and Optical)
E/753 X-ray Observations of the Antennae (smooth and maximum entropy)
E/754 Spectra for the six quasars obtained with the MMT Telescope
E/755 Integral number-magnitude relation for quasar samples with spectroscopy.
E/756 IC342 Maximum entropy contours
E/757 IC2574 Smooth (45") contours
E/758 IC342 smooth (45") contours
E/759 Distribution of monochromatic X-ray, optical and radio luminosities for 33 3CR quasars.
E/760 Plot of power law spectral index vs.~log of monochromatic luminosities for each of the 33 3CR quasars.
E/761 Distribution function for the conditional X-ray luminosity function for 3CR quasars.
E/762 Plot of log zeta = log (l_x/l_o)^0.5 vs. radio to optical spectral index for the nuclear radio source for "triple" 3CR radio sources.
E/763 NGC1313 45" smooth
E/764 Redshift vs. luminosity at lambda 2500A (rest frame) for the 32 quasars used here. Solid lines: flux limits for the two samples.
E/765 Joint 68% and 90% confidence regions for the luminosity function index, alpha, and the evolution function parameter, k. Solid lines: q_o = 0, dashed lines: q_o = 1/2~ (68% only). Upper and Middle curves: f(z) = e^k*tau. lower curves: f(z) - (1+z)^k. (a) pure luminosity evolution models, (b) pure density evolution models.
E/766 X-ray position for the source associated with B06, a blue galaxy, the 3C295 cluster.
E/767 NGC6744 45" Gaussian smooth
E/768 NGC628 45" Gaussian smooth
E/769 NGC2903 45" Gaussian smooth
E/770 IC342
E/771 IC2574
E/772 NGC1313
E/773 NGC628
E/774 NGC2903
E/775 NGC6744
E/776 Mkn325 (Heidmann)
E/777 M101
E/778 Cyg X-1 First Light
E/779 Overlapping fields of view of the HRI (dashed lines for the Pavo deep survey. = detection in HRI and IPC; = detection in HRI only: o = detection in IPC only.
E/780 (Plate) Positions and 90\% confidence error circles for X-ray sources detected in the Einstein Observatory deep survey in Pavo, superimposed on the red (IIIaF) prime-focus AAT plate.
E/781 Color-magnitude diagrams for point sources (stars) in the 0.30 measured by COSMOS.
E/782 Color-magnitude diagrams for extended sources (galaxies) in the 0.30 square degree area measured by COSMOS.
E/783 Color-magnitude diagram for the stellar objects which are X-ray source identifications. The label Q means "QSO spectrum" and each object is also labelled by the field number. Objects labelled with numbers in circular brackets (), are outside the formal error circles.
E/784 Optical spectra of identifications with HRI X-ray sources.
E/785 6 cm radio survey of the Pavo area. Coordinates are apparent of date, but can be read without significant error as mean equinox 1979.8. Crosses mark the 17 X-ray sources; Q is the X-ray source identified with the QSO with redshift 1.13 and is associated with a radio source.
E/786 The number, N(S), of X-ray sources for which the 6 cm radio flux density was measured to be S, using the wagging technique. Q is the quasar with redshift 1.13. With the exception of Q, the histogram reveals no sources above the level set by receiver noise and background confusion.
E/787 Mass density distribution as a function of radius. The curves are normalized to the central value of each configuration.
E/788 Surface density of the various models, obtained by projecting the density distribution on the plane of the sky.
E/789 Distribution of the mass as a function of radius. The curves are normalized to the total value of the mass in each configuration.
E/790 One dimensional velocity dispersion as a function of radius for the various models computed. Each curve is normalized to its central value.
E/791 Rotational velocity as a function of radius for the semidegenerate model.
E/792 Rotational velocity as a function of radius for the King and the degenerate model.
E/793 NGC4151 HRI extent. Pie diagrams showing SW excess
E/794 NGC4151 HRI extent. chi^2 versus azimuth
E/795 NGC4151 HRI extent. Radial profile
E/796 NGC4151 HRI extent. [O III] map, Fricke and Reinhardt (1974)
E/797 NGC4151 HRI extent. 5 GHz VLA map (Johnston et al.~1982).
E/798 NGC4151 HRI extent. Composite optical, radio, X-ray map.
E/799 Obscuration. N_H vs. HX/SX
E/800 NGC 6814, Obscuration. H alpha/H beta versus axial ratio (a/b).
E/801 Obscuration. Effect of changing covering factor on low energy X-ray spectra.
E/802 Obscuration. Definitions superimposed on NGC7582 spectrum.
E/803 Log L_x AGN. Piccinotti et al. (1982) X-ray luminosity function.
E/804 Log L_x AGN. M81 HRI image.
E/805 Log L_x AGN. NGC5033 IPC image, masked and unmasked.
E/806 Log L_x AGN. NGC4151/4156 IPC Field, HRI inset.
E/807 Log L_x AGN. 3C264, NGC3862, Abell 1367 IPC Field. HRI inset.
E/808 Log L_x AGN. Extrapolating Piccinotti et al.~ to Log L_x
E/809 Log L_x AGN. L(H alpha)/L(NII) distribution from Keel (1982).
E/810 Log L_x AGN. L_x/L(H alpha) distribution for high luminosity AGN.
E/811 Log L_x AGN. comparison of H alpha predicted and observed with L_x.
E/812 Log L_x AGN. Construction of the bivariate X-ray luminosity function for low L_x AGN
E/813 Log L_x AGN. AGN Luminosity Function: 10^39-10^45 erg s^-1 (Elvis, Soltan, and Keel, plus Piccinotti et al.)
E/814 Log L_x AGN. Contributions to the X-ray background for different luminosity AGN.
E/815 Log L_x AGN. Composite of E/814 and E/815. AGN XLF plus XRB Contributions.
E/816 Histogram showing calculated beaming factors derived using Model A (1A) or model B (1b). Data binned in equal logarithmic intervals of delta, and normalized to the same scale as the predicted distributions 1(c). In 1c, the logarithmic probability density delta-rho(delta) is shown, assuming delta function.
E/817 Contours of equal S=~-2 ln (likelihood) for the average dependence of alpha_o,_x on tau_z and log L_o. The projections of these contours on each of the A_z and A_o axes yield the 68% and 95% confidence limits for each of the parameters separately.
E/818 The 31 AGNs in the medium survey sample plotted in the Log L_x-Log z plane. The two solid lines represent a pure luminosity evolution law with c = 5.7 as derived from the ML method (see Section 4). The dashed line represents the limiting sensitivity of the deepest IPC field used in he survey.
E/819 The resulting value of as a function of different trial values of the evolution parameter c. The two dashed lines indicate the 2 sigma confidence region while the thin lines indicates the best fit value.
E/820 The 68\% (inner) and 90\% confidence contours for the joint estimate of the evolution parameter c and slope-gamma of the X-ray luminosity function.
E/821 Log L_x AGN. Predicted L_x (1-10 keV) vs. observed L_x(0.5-4.5 keV)
E/822 QSO selected techniques.
E/823 Comparison with theoretical model
E/825 Redshift va. luminosity at lambda2500A (rest frame) for 56 quasars analyzed.
E/826 Joint 68\% and 90\% confidence regions for the luminosity function index.
E/827 Same as E/826 except for pure density evolution models (DE).
E/828 Redshift vs. present-epoch luminosity for 56 quasars in data set.
E/829 Integral number-magnitude relation for quasar samples with spectroscopy.
E/830 Distribution of alpha_ox determined by the DB method for 34 BF quasars; values of alpha_ox detections and lower bounds.
E/831 3CR radio galaxies - distribution of L_x.
E/832 3CR radio galaxies - distribution of f_x/F_v.
E/833 3CR radio galaxies - a,b, from same angular size detect all c,d, from same linear size detect cell
E/834 3CR radio galaxies - L_RN vs. L_RT; L_RN vs. L_o; L_RT vs. L_o
E/835 3CR radio galaxies - L_x vs. L_RT, L_o
E/836 3CR radio galaxies - f_x vs. f_RN; L_x vs. L_RN
E/837 3CR radio galaxies - L_H~beta vs. L_x
E/838 3CR radio galaxies - 3CR quasars and flat radio spectrum quasars L_x vs. L_RN
E/839 3CR radio galaxies - (a) 3CR quasars (c), flat radio spectrum quasars (a) distribution of log f_x/f_RN
E/840 Log L_x AGN. Same as E/809 but noting upper limits and allowed HII region area.
E/841 Log L_x AGN. Same as E/815 but adding circles showing effect of smoothing via L_x/L_Halpha distribution.
E/842 Basic AGN Correlations. L_Halpha vs. L_x (2-10) keV, from Phillips et al., A + A, 76, L14 (1979).
E/843 Basic AGN Correlations. L_Hbeta vs. L_x, from G.A.~Kriss, Thesis.
E/844 Basic AGN Correlations. P(4000A) vs. L_x, from G.A.~Kriss, Thesis.
E/845 Histogram of the net IPC count rate of the quasars analyzed for variability (a). Expanded version of the same histogram for small count rates (b).
E/846 Histrograms of distribution of Delta L/Delta T on the various timescales.
E/847 X-ray light curve (in counts/1000s on the left and erg/s on the right HRI) for OX 169.
E/848 X-ray light curve (HRI) for 3CR 273.
E/849 X-ray light curve (IPC) for Mkn 205.
E/850 X-ray light curve (IPC) for PG 1416-12.
E/851 Distribution of X-ray luminosities for quasars analyzed for variability on "intermediate" timescales.
E/852 3CR radio galaxies: log O III/H beta versus log L_x.
E/853 IUE short wavelength spectrum of the z=0.651 quasar PKS 0637-75.
E/854 Composite IR to UV observed spectra for PKS 0637-75.
E/855 alpha_ox versus optical luminosity l deg for radio loud quasars adapted from Zamorani (1982)
E/856 IUE short wavelength spectrum of the z=0.241 quasar PKS 1004+13.
E/857 Composite IR to UV observed spectra for PKS 1004+13
E/858 Radio to X-ray distribution for PKS 0637-75.
E/859 Radio to X-ray distribution for PKS 1004+13.
E/860 Jupiter, high latitude X-ray emission.
E/861 Results of CCD photometry compared with photographic photometry from Formiggini et al (1980) and Braccesi, Formiggini and Gandolfi (1970).
E/862 U-B vs. B-V for the BF quasar candidates.
E/863 U-B vs. z for the radio selected quasars from the 3CR, 4C and Parkes quasar surveys.
E/864 U-B vs. B-V for the UVX BF objects with B < 19.8
E/865 Number vs. count rate for 40 objects with B < 19.8
E/866 Positions of BF quasars, shown in relation to the IPC ribs (solid lines) and HRI (dashed outlines) X-ray images.
E/867 Tentative identification results from the X-ray survey of the BF region.
E/868 Redshift vs. luminosity at lambda2500A (rest frame) for the 57 quasars in the AB and BF samples.
E/869 Example of z-L diagram with regions designated for evolution analysis.
E/870 (a) Redshift vs. present-epoch luminosity for the 57 AB and BF quasars. (b) Non-parametric representation of the luminosity function for the same evolution model, as obtained by the C method and by the 1/V_a method.
E/871 Coverage function, as a fraction of the sky, for the combined AB, BF and PG data set as a function of limiting magnitude.
E/872 The z-L data for the 171 quasars in the combined AB, BF and PG samples.
E/873 90\% and 1 sigma confidence contours of the parameters of several acceptable pure luminosity evolution models fitted to the AB, BF and PG data samples.
E/874 Cumulative distribution of redshifts in the data set, compared to model predictions.
E/875 Fitted values of the pure density evolution index, k_D as a function of luminosity.
E/876 The luminosity function index vs. redshift in seven redshift bins.
E/877 The luminosity function for the combined data set (AB, BF and PG samples) produced for an LE model with the C method and the 1/V_m method.
E/878 The z-L diagram for the combined data set, restricted to L > 0.47L*.
E/879 The integral number-magnitude relation for quasar samples with spectroscopy and a comparison to model predictions.
E/880 Optical luminosity function at z=2.15 from Gaston (1983) and from a pure luminosity evolution model.
E/881 Redshift vs. X-ray luminosity (2-10 keV) for the 29 AGN from Piccinotti et al (1982).
E/882 Joint 1 sigma and 90% confidence regions for the normalization and slope of the X-ray luminosity function from analyses of the HEAO-A-2 sample of AGN, sample A, and for different cosmological models.
E/883 Same as above, except for sample B. Sample B includes some new identifications and AGN that were left out by Piccinotti et al.
E/884 Joint 68\% and 90\% confidence regions for the X-ray luminosity function index, beta, and the evolution index, k_x, for two pure luminosity evolution models.
E/885 Redshift vs. luminosity at lambda2500A (rest frame) for the 171 quasars in the AB, BF and PG samples under the assumption of the chronometric cosmology.
E/886 Radius of the stellar system vs. the number of stars, for use with the stellar collision theory.
E/887 Cas A elemental abundances.
E/888 4 Galactic Sources: Cyg X-1, Eta Carina, GX109, SS433
E/889 4 Extragalactic Sources: M-31, Cen A, A2256, 3C273
E/890 Clusters of Galaxies A2256 and CL0016+16
E/891 Galaxies in Clusters M86, M84 and A1367
E/892 Cas A HRI Deconvolution
E/893 Double Cluster - Sco 627-54
E/894 A1367 Cluster of Galaxies
E/895 NGC 253 HRI
E/896 (Fig. 1a) 610 MHz map of the halo in A1367.
E/897 (Fig. 1b) 1415 MHz WSRT map convolved to the 610 MHz resolution.
E/898 Smoothed maps of the central region of the X-ray field of A1367.
E/899 Vela SNR
E/900 Eridanus Deep Survey
E/901 M87's Halo
E/902 Cas A with labels showing shock and possible abundance variations.
E/903 Central Region of the Virgo Cluster M87, M86, M84
E/904 Vela SNR, IPC smoothed
E/905 A2256 and distant cluster
E/906 BLRG optical-IR flux distributions (as in paper 3CR 1-20 micron IR Photometry).
E/907 BLRG optical-IR flux distributions (with useful annotations, as in paper above).
E/908 NLRG optical-IR flux distributions (as in paper above).
E/909 NLRG optical-IR flux distributions (with useful annotations, as in paper above).
E/910 3C234 radio/X-ray flux distributions
E/911 ``Typical'' Seyfert 1 and Seyfert 1 optical-IR flux distributions.
E/912 M 101 (optical) identification chart of the various components of the stellar content.
E/913 X-ray luminosity distribution: the Galaxy, M33, M31, LMC.
E/914 Starburst galaxies NGC 5585, 5474, 5204, and 5477 (Optical).
E/915 Mkn 325 (optical photo from J. Heidmann)
E/916 NGC 5253, 5408 (optical)
E/917 R 136 (optical) in 30 Doradus
E/918 NGC 2403 IPC data and maximum entropy
E/919 SS 433 Stellar Jets
E/920 Cen A Galactic Jet
E/921 The Supernova Remnant Puppis A
E/922 BL Lac Spectrum
E/923 Slightly smoothed spectra for the 19 new BF quasars with 19.2 < B < 19.8, obtained with the spectrograph on the Multiple Mirror Telescope. The spectrum of BF 38 is a composite of two observations.
E/924 Same as above.
E/925 Same as above.
E/926 Same as above.
E/927 Results of CCD photometry compared with photographic photometry from Formiggini et al (1980) and Braccesi, Formiggini and Gandolfi (1970).
E/928 Redshift vs luminosity at lambda 2500A (rest frame) for the 57 quasars analyzed here. Solid lines: flux limits for the two samples plus a cutoff at z = 2.2.
E/929 Joint 68\% and 90\% confidence regions for the luminosity function, index, alpha, and the evolution function parameter, k, for pure luninosity evolution models (LE).
E/930 Same as Figure 4, except for pure density evolution models (DE).
E/931 (a) Redshift vs present epoch luminosity for the 57 quasars in the data set. (b) Non-parametric representations of the luminosity function for the same evolution model.
E/932 The integral number-magnitude relation for quasar samples with spectroscopy.
E/933 Upper portion: distribution of alpha_ox determined by the binned DB method for the 35 BF quasars. Lower portion: the values of alpha_ox - detections and lower bounds.
E/934 The z-L diagram to be analyzed with the generalized C method. The designation for the number of quasars in each region of the diagram is given.
E/935 Normal spiral galaxies L_x, f_x/f_B, f_x/f_R, and f_B/f_R histograms.
E/936 N253 HRI overlay on ESO plate
E/937 Normal spiral galaxies X-B and X-R correlations.
E/938 Normal spiral galaxies f_x/f_b vs U-B
E/939 NGC 253 HRI nucleus-jet radial plots
E/940 Normal spiral galaxies Gioia and Gregorini sample
E/941 Normal spiral galaxies Log L_b vs. Log L_R
E/942 NGC 253 HRI nucleus-jet smooth 2"
E/943 Normal spiral galaxies log L_x versus log L_H (Infrared)
E/944 NGC 253 HRI inner disk (a) 5'' smooth; (b) 15'' smooth
E/945 Normal spiral galaxies color-color diagram
E/946 NGC 253 IR-X-ray comparison with GCX and M82
E/947 Finding charts (from enlargements of CTI0 4-m U plates) for each of the eight globular clusters containing luminous X-ray sources. For each of the finding charts, the X-ray position and cluster center position are plotted with approximate error bars (exact values are shown in Figure 2), and the cluster core radius is marked as a circle. North is up and East is left, and the scale of each chart can be derived from the core radii given in Table 1.
E/948 Finding charts (continued)
E/949 Measured radial offsets of X-ray sources from the centers of their respective globular clusters in units of the cluster core radius.
E/950 Result of Kolmogorov-Smirnov test for absolute likelihood that the observed X-ray source offsets from cluster centers are due to a distribution of sources with the particular value of q (X-ray source mass in units of cluster field star mass) shown. A simple isothermal cluster potential is assumed.
E/951 Relative likelihood analysis for allowed range of q about best estimate value of q = 2.6. The 90% confidence level Delta~chi^2 = 2.3 interval for q is 1.8 - 3.8.
E/952 Phase resolved images of the Crab Nebula Pulsar (16 intervals of ~ 2 millisec each)
E/953 Supernova Remnant MSH15-5(2) - HRI and IPC
E/954 Crab Pulsar - neutron star radius vs. temperature
E/955 Crab Pulsar - bolometric luminosity vs. assumed temperature
E/956 Crab Pulsar - 100 microsec resolution light curve
E/957 PSR 1509-58 - HRI and IPC light curves of the 150 millisec pulsar in SNR MSH15-5(2)
E/958 NGC6814 Fast Variability (HEAO A-2) Tennant et al.
E/959 Radio Galaxy (BLRG) X-ray Spectra (HEAO A-2)
E/960 NGC 6814 HEAO A-2 light curve (Tennant et al)
E/961 Spectral Index for AGN (alpha X-ray) SSS Petre et al
E/962 High L_x Seyfert X-ray Spectra (HEAO A-2)
E/963 NGC 4051 Fast Variability (IPC) (Marshall et al)
E/964 Contour maps of the IPC images. Contour levels are linearly spaced, the lowest contour corresponding to ~ 3.2 x 10^4 IPC count/s in each case. Each image has been corrected for telescope vignetting. (a) Sequence 949 Galactic Center.
E/965 See E/964 (b) Sequence 950 Galactic Center
E/966 See E/964 (c) Sum of 949 and 950 Galactic Center.
E/967 Schematic map of galactic center region as observed by the IPC. (Watson, M. G. et al, Ap. J., 1981)
E/968 Radio map of the galactic center region at 10.7 GHz with 1.3 arcmin beam size.
E/969 Infrared map of the galactic center at 2.2 microns made with 1.2 arcmin beam.
E/970 Electromagetic spectrum of the galactic center region. Flux measurements are shown for two distinct components: Sgr A West and extended, diffuse component.
E/971 MPC Spectra of SS433
E/972 Einstein image of SS433
E/973 Composite Globular Cluster Image
E/974 CTB 80 IPC and radio 60" smoothing. SNR.
E/975 CTB 80 IPC and radio 30" smoothing. SNR.
E/976 IPC Quasar spectra: 3 diverse quasars, best fits and raw data.
E/977 IPC Quasar spectra: 3 diverse quasars, chi^2
E/978 X-ray Contours of the IPC observations of M83.
E/979 Finding charts for the serendipitous sources detected in the M83 IPC field.
E/980 HRI X-ray contours are overlayed onto optical picture of M83 (courtesy of G. deVaucouleurs).
E/981 The X-ray contours of the nuclear region of M83.
E/982 Azimuthally averaged radial surface brightness of M83 (a,b), and IPC (solid line) and convolved optical surface brightness profiles (dashed lines), c.
E/983 The ratio of X-ray to optical flux for M83.
E/984 (a) Binning of the HRI M83 image to search for spiral pattern (b) Map of blue magnitude of the young star clusters.
E/985 Position of the X-ray sources resolved in M83.
E/986 Correction factor C for the f_x/f_B ratio as a function of extinction A_v, calculated assuming a thermal bremsstrahlung spectrum for the X-ray emission.
E/987 Spiral galaxies,- results of Spearman partial rank correlation test.
E/988 Spiral galaxies, B_T, M_{B_T}, T distributions.
E/989 LVS spiral galaxies, flux/flux correlations.
E/990 LVS spiral galaxies. Total sample correlations including B-H.
E/991 LVS spiral galaxies L_x, fx/fb distributions.
E/992 LVS spirals L_x vs L_R residuals.
E/993 LVS spiral galaxies fx/fB vs. U-B
E/994 LVS spiral galaxies. Subsamples l_x, l_B, l_R, l_H correlations.
E/995 Distribution of the blue absolute magnitudes (a) and apparent magnitudes (b).
E/996 Distribution (a) of the X-ray luminosities L_x for the galaxies in the sample, and (b) Distribution of the X-ray to optical flux ratios of f_x/f_B. The hatched box represents NGC6876 for which only a Harvard Magnitude is listed in deVaucouleurs, de Vaucouleurs, and Corwin (1976).
E/997 (a) Plot of the X-ray monochromatic (2 keV) luminosity against the blue luminosity in units of erg/s.Hz. M84, M86 and the bulge of M31 are also shown.
E/998 (b) The X-ray monochromatic flux against blue flux in units of mJy.
E/999 (a) Distribution of the residuals obtained for the elliptical and SO galaxy sample after subtracting the best fit log l_x = 1.64 log l_B - 25.4. (b) Same as (a) but using log l_x = 1.08 ell_B - 9.2.
E/1000 Same as E/997. The lines represent the different models considered: Dashed line: best fit l_x ~alpha ~l_B^{1.64}; solid line: l_x ~alpha ~l_B^2 (Hot coronae); dot-dashed line: individual sources; dotted lines: White and Chevalier (1984) model for T > 1 x 10^6 K and T > 2 x 10^6 K.
E/1001 The monochromatic X-ray luminosity is plotted against the optical luminosity for normal elliptical and S0 galaxies (this sample, x) and the 3CR galaxies (Fabbiano et al. 1984). The V band magnitudes have been used for consistency with the data for 3CR galaxies.
E/1002 The monochromatic X-ray luminosity of 3CR quasars and 3CR galaxies plotted as a function of optical luminosity. Dashed line represents the best fit to the 3CR quasar data. The solid lines represent how this best fit is modified when the effect of the whole galaxy is considered for three different optical luminosities.
E/1003 A 1367. Optical picture of the cluster contains several hundred individual galaxies, the brightest of which are seen as the extended or fuzzy dark spots.
E/1004 X-ray contour map of M51 and its companion (NGC~5195) superposed on the optical image from the Hubble Atlas of Galaxies (Sandage 1961). The x-ray data have been smoothed with a gaussian with sigma = 24". The first contour is 2 sigma above field background; 3, 4, 5, 7, 9, 11, 13, 15 \sigma's are then plotted.
E/1005 a) X-ray contour map smoothed with a gaussian with sigma = 5". The first contour is 2 sigma above the field background. Successive contours are plotted at steps of 1 sigma over the previous one. Note that due to the smaller smoothing function, NGC~5195 is less significant than in E/1004 which suggests that the source is extended. A, B and C identify the sources of Table 1. b) H alpha photograph from Carranza, Crillon, and Monnet (1969, plate 1) on the same scale as a); c) High resolution radio continuum 21~cm map (adapted from Figure~4 in Segalovitz (1977)). The radio contours that stress the arm component are superposed on a blue photograph of M51. The scale is the same as a).
E/1006 The radial distribution of x-ray photons in the nuclear region of M51 (histogram) compared to the HRI point spread function (solid line).
E/1007 a) X-ray (crosses) and optical blue (solid line) surface brightness profiles plotted as a function of radius. Azimuthal symmetry has been assumed. The relative normalization of the two curves is arbitrary; b) X-ray (f_x) over optical (f_B) flux ratio as a function of distance from the center of M51. The dashed line represents the average f_x/f_B for a radius > 100''.
E/1008 Comparison between the x-ray, H alpha, blue light (disk and arms), far-infrared, neutral hydrogen, molecular hydrogen (derived from CO) and 21~cm radio continuum surface brightness profiles. The x-ray points are plotted on a composite of Figure~6 from Scoville and Young (1983). The x-ray data points have been corrected for the inclination of M51 (i = 20 deg) as in Scoville and Young (1983). X-ray points for R < 2~kpc are not plotted because off scale. All curves have been arbitrarily normalized.
E/1009 NGC4382
E/1010 Cygnus X-1 (artist's concept)
E/1011 Supernovae-Pulsars, CTB 109
E/1012 NGC1332
E/1013 NGC 720
E/1014 NGC 1395
E/1015 NGC 4649 IPC
E/1016 NGC4472 IPC
E/1017 NGC 4636 IPC
E/1018 IC 342 X-ray contour
E/1019 Composite X-ray contours: NGC 2403, 2903, 4631, 5253
E/1020 Composite X-ray contours: IC 2574, NGC 6744, 6946
E/1021 Composite X-ray contours: NGC 628, 1313, 1559, 1672.
E/1023 NGC 4636 IPC
E/1024 NGC 4631 X-ray contours
E/1025 NGC 6946 Radial profiles of surface brightness
E/1026 Spiral galaxies spectra : counts and best fit.
E/1027 Spiral galaxies spectra: confidence contours
E/1028 Starburst nuclei energy spectra
E/1029 Spiral galaxies : radial profiles
E/1030 Spiral galaxies: average spectral confidence contours
E/1031 Isointensity X-ray contours from the IPC observation superimposed on the POSS print.
E/1032 Azimuthally averaged IPC X-ray surface brightness profiles of NGC 720, 1395, 4382 and 4649.
E/1033 Isointensity X-ray contours of the HRI observation for NGC 4636, 4472 and 4649.
E/1034 Azimuthally average IPC X-ray surface brightness profiles of NGC 4472.
E/1035 Background subtracted azimuthally average X-ray surface brightness profiles for NGC 720, 1395, 4382
E/1036 X-ray surface brightness profile from the IPC data of NGC 1395.
E/1037 X-ray and optical surface bightness profiles for NGC 4472, 4636 and 4749.
E/1038 Results from the spectral analysis of IPC data.
E/1039 Spectral fit contours with varying Solar Abundances for NGC 4472 and 4649.
E/1040 Density and cooling time profiles for NGC 4649, 4472 and 4636
E/1041 Allowed mass values for different gas temperatures.
E/1042 Comparison of simple models of the X-ray surface brightness distribution to the empirical expression
E/1043 Large Magellanic Cloud merged (mosaic) CAL.
E/1044 H0323+022 X-ray event
E/1045 M31 and M81 X-ray Source luminosity by function
E/1046 M81 Nuclear Spectrum
E/1047 M81 IPC Overlay
E/1048 M81 Galaxy Spectrum, best-fit contours
E/1049 Diffuse fraction vs point source threshold for spirals
E/1050 M81 HRI Overlay
E/1051 M81 Nucleus - accretion disk model
E/1052 M81 Nucleus IPC Light Curve
E/1053 M81 X-ray and Radio Sources
E/1054 M81 Nucleus - Comparison with bright active nuclei
E/1055 M81 Radial Profile
E/1056 M81 Energy Distribution
E/1057 M81 X-ray, Optical and Radio Radial Profiles
E/1058 M81 HRI (crosses) and IPC (circles) positions
E/1059 Quasar Accretion Disk models: Disk spectrum at a single radius.
E/1060 Disk spectra calculated with different assumptions about the locally emitted radiation spectrum.
E/1061 Dependence of disk spectrum on viscosity parameter alpha.
E/1062 Dependence of disk spectrum on accretion rate for assumed value of the flux in optical range (M.M=10^9).
E/1063 The influence of a hot corona on the disk spectrum.
E/1064 Mean slope of the disk spectrum in the range of L_Edd.
E/1065 Extension of the disk spectrum to high frequencies.
E/1066 Accretion disk parameters for PG1211+143.
E/1067 Fit to the data for PG1211+143 by accretion disk with hot corona.
E/1068 Fit to the data for PG1211+143 (corrected for galactic N_H value).
E/1069 Correlations and morphological type in S Galaxies
E/1070 Five-band correlations in S Galaxies (a)
E/1071 Five-band correlations in S galaxies (b)
E/1072 R, B, FIR correlation in spiral galaxies "joint" sample
E/1073 R, B, FIR correlations in the ``VLA'' spiral sample
E/1074 M33 in the IPC
E/1075 NGC 253, IPC
E/1076 M82, IPC Spectra
E/1077 M82, IPC
E/1078 M82 Halo Radial Profile
E/1079 NGC 253, IPC Spectra
E/1080 M82 and NGC 253 Background Subtraction
E/1081 Atmospheric transmission for electromagnetic radiation
E/1082 M87 Jet Einstein HRI
E/1083 M87 Jet AXAF/ACIS Simulation