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X-ray Emission in the COSMOS Field
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X-ray Emission in the COSMOS Field

January 23, 2010
This image shows the galaxy density in the COSMOS field, with colours representing the redshift of the galaxies (ranging from redshift of 0.2 (depicted in blue) to 1 (depicted in red). The X-ray contours (in pink) show the extended X-ray emission as observed by XMM-Newton.

The Cosmic Evolution Survey (COSMOS) is an astronomical survey designed to probe the formation and evolution of galaxies as a function of cosmic time (redshift) and large scale structure environment. The survey covers a 2 square degree equatorial field with imaging by mosey of the major space-based telescopes (including Hubble and XMM-Newton) and a number of ground-based telescopes.


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