Image:2MASS LSS chart-NEW Nasa.jpg

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Description

Panoramic view of the entire near-infrared sky reveals the distribution of galaxies beyond the Milky Way. 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' obtained from the UGC, CfA, Tully NBGC, LCRS, 2dF, 6dFGS, and SDSS surveys (and from various observations compiled by the NASA Extragalactic Database), or photo-metrically deduced from the K band (2.2 um). 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 that 2MASS resolves (0.04 < z < 0.1). The map is projected with an equal area Aitoff in the Galactic system (Milky Way at center).

Source

"Large Scale Structure in the Local Universe: The 2MASS Galaxy Catalog", Jarrett, T.H. 2004, PASA, 21, 396

Date

2004

Author

IPAC/Caltech, by Thomas Jarrett

Permission
(Reusing this image)

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[edit] Information cropped from image

Title: "Large Scale Structure in the Local Universe"

Legend: "image shows 2MASS galaxies color coded by redshift (Jarrett 2004); familiar galaxy clusters/superclusters are labelled (numbers in parenthesis represent redshift). Graphic created by T. Jarett (IPAC/Caltech)"


Public domain
This file is in the public domain because it was created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (NASA copyright policy page or JPL Image Use Policy).

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Historique du fichier

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Date et heureDimensionsUtilisateurCommentaire
actuel22 janvier 2008 à 19:271 239×627 (1,35 Mio)Papa November (Cropped to remove border using GIMP. No copyright claimed for non-creative derivative work)
3 juillet 2007 à 18:231 253×756 (1,35 Mio)QWerk (Graphic by Thomas Jarrett (IPAC/Caltech))

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