File:Finding Faint Galaxies.jpg
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| Description |
English: When one galaxy wont do the trick, perhaps 20,000 will do. In the blue image on the left, 24 micron images of over 20,000 faint, distant galaxies have been added together. None of these galaxies were detectable, alone, at longer wavelengths. The following green and red images show the resulting combined images at 70 microns and 160 microns, respectively, which result in a clear detection of the galaxies in the until-recently unresolved infrared background. |
| Date | |
| Source | http://www.spitzer.caltech.edu/images/2301-sig06-008-Finding-Faint-Galaxies |
| Author | NASA/JPL-Caltech/H. Dole (IAS) |
Image use policy: http://www.spitzer.caltech.edu/info/18-Image-Use-Policy
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) |  |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:17, 20 June 2011 | | 1,200 × 404 (360 KB) | Spitzersteph (talk | contribs) |
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