X-ray and Infrared Properties of Galaxies and AGNs in the 9 deg^2 Boötes Field

Details X-ray and Infrared Properties of Galaxies and AGNs in the 9 deg^2 Boötes Field X-ray and Infrared Properties of Galaxies and AGNs in the 9 deg^2 Boötes Field

Mar 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aspc..381..417h&link_type=abstract

The Second Annual Spitzer Science Center Conference: Infrared Diagnostics of Galaxy Evolution. ASP Conference Series, Vol. 381,

Astronomy and Astrophysics

Astronomy

Scientific paper

We examine the X-ray and infrared properties of galaxies and AGNs in the 9 square degree Boötes 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 AGN luminosity function out to spectroscopic redshifts as high as z=3--4. We can use this multi-wavelength data set to explore the properties and redshift evolution of a large sample of luminous active galaxies.

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