ISOPHOT Polarimetry--High-Latitude Positions

This suggestion was contributed by Carl Heiles and compiled by Alyssa Goodman.

The region of interest is shown, in galactic coordinates on "Plate 31" of Heiles 1989, which is reproduced below.

(click to enlarge)

The plan here is to sample as many positions as possible along the dark HI filament near l=43 deg as is feasible, and also to do some positions where polarization of background starlight has been observed.

Note: can this region (below) really be done, given that flux~10 MJy/Sr & background is just as bright??

1.1 x 1.1 deg IRAS 100-micron Map and estimated fluxes:

Fluxes and positions at crosses:

1. circled crosshair (position of Zeeman observation): RA = 307.002737 DEC = -1.572451 brightness = 10.21 MJY/SR band = 100 RA = 20h28m00.65688s DEC = -1d34m20.8236s (B1950)

2. upper left: RA = 307.476633 DEC = -1.198662 brightness = 10.59 MJY/SR band = 100 RA = 20h29m54.39192s DEC = -1d11m55.1832s (B1950)

 

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