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Calar Alto Deep Near-IR Images

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Pretty Pictures:

Large JPEGs of L1448 and L1451 as they will appear in ApJ Letters.

L1448


L1451

Color images made with xdimsum images, DS9, and Photoshop.

Description:

Deep near-IR images (J,H,Ks) taken to produce high-resolution extinction maps. Regions neer dense clouds show some extended emission (cloudshine) which we believe to be Galactic starlight scattering off dust. One region, L1448, shows a number of remarkable outflows.

Comments on Reduction:

Cloudshine complicates data reduction. Regions covered by extended emission will be dimmer than in reality, since sky-subtraction will subtract out real signal. This process acts like a sharpening filter, enhancing contrast in these images.

Contact Person:
Jonathan Foster, Harvard-Smithsonian Center for Astrophysics
Telescope:
Calar Alto 3.5-meter
Status:
Complete
Sampling:
Seeing during these observations was good, often 0.6-0.7 arcseconds.
Areal Coverage:

Each frame is 15.4 by 15.4 arcminutes. A total of seven science frames and two control fields were obtained.

Publications: