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Panoramic view of the 2MASS near-infrared sky reveals the distribution of galaxies beyond the Milky Way, extending out to 400 Mpc. The Spitzer Wide-area InfraRed Extragalactic Survey (SWIRE) will probe to depths >10X deeper than 2MASS, back to the era of galaxy formation. The image is derived from the 2MASS Extended Source Catalog (XSC) -- more than 1.5 million galaxies, and the Point Source Catalog (PSC) -- nearly 0.5 billion Milky Way stars. The galaxies are color coded by redshift, photometrically deduced from the K band (2.2 um) or as given in the NASA Extragalactic Database (NED). Blue are the nearest sources (z < 0.01), green are at moderate distances (0.01 < z < 0.04) and red are the most distant sources (0.04 < z < 0.1). The map is projected with an equal area aitoff in the Galactic system (Milky Way at center). The SWIRE fields: Lockman Hole, ELAIS N1/N2/S1, XMM & Chandra-S are shown their projected field coverage. Click here for a larger image. Image created by Dr. Tom Jarrett. Return to image-gallery index. |
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