``Normal" Galaxies Detected in the X-ray Band: Some of the Faintest Sources in the CDF-N

Details ``Normal" Galaxies Detected in the X-ray Band: Some of the Faintest Sources in the CDF-N ``Normal" Galaxies Detected in the X-ray Band: Some of the Faintest Sources in the CDF-N

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...19910602h&link_type=abstract

American Astronomical Society, 199th AAS Meeting, #106.02; Bulletin of the American Astronomical Society, Vol. 33, p.1472

Astronomy and Astrophysics

Astronomy

Scientific paper

Extremely deep (1 Ms) Chandra observations are detecting optically ``normal'' galaxies in increasing numbers. These ``normal'' galaxies are objects which do not show the obvious signatures of actively accreting supermassive black holes, and likely have X-ray emission dominated by X-ray binaries, supernova remnants and diffuse ISM. In some cases these objects also have contribution from a low-luminosity AGN. In even deeper (> 1 Ms) Chandra surveys, these normal galaxies are expected to arise as perhaps the most numerous class of X-ray emitters. The Chandra Deep Field-North (CDF-N) survey has reached 1 Ms of ACIS coverage and by the time of this conference, will have completed the first half of a second million seconds of ACIS coverage. This is the deepest X-ray survey ever made, and it maintains this region of extragalactic sky, the Hubble Deep Field-North area, as the most comprehensively studied at all wavelengths. This talk will concern the evolution (or lack thereof) of the X-ray properties of galaxies out to approximately z=1 as observed in the CDF-N field.

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