X-ray and infrared properties of galaxies and AGNs in the 9 square degree Bootes field

Details X-ray and infrared properties of galaxies and AGNs in the 9 square degree Bootes field X-ray and infrared properties of galaxies and AGNs in the 9 square degree Bootes field

2006-03-24

arxiv.org/abs/astro-ph/0603678v1

Astronomy and Astrophysics

Astrophysics

4 pages, 3 figures, to appear in the proceedings of "The Spitzer Science Center 2005 Conference: Infrared Diagnostics of Galax

Scientific paper

We examine the X-ray and infrared properties of galaxies and AGNs in the 9 square degree Bootes field, using data from the Chandra XBootes and Spitzer IRAC Shallow Surveys, as well as optical spectroscopy from the AGES survey. A sample of ~30,000 objects are detected in all four IRAC bands, of which ~2,000 are associated with X-ray sources. We also study X-ray fainter sources using stacking techniques, and find that X-ray fluxes are highest for objects with IRAC colors that are known to be characteristic of AGNs. Because these are shallow, wide-field surveys, they probe the bright end of the AGNluminosity function out to spectroscopic redshifts as high as z=3-4. We can use this multiwavelength dataset to explore the properties and redshift evolution of a large sample of luminous active galaxies.

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