AAS 199th meeting, Washington, DC, January 2002
Session 106. Deep-Fields and High-Z Galaxies
Oral, Wednesday, January 9, 2002, 10:00-11:30am, International Ballroom East

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

A. E. Hornschemeier (The Pennsylvania State University), Chandra Deep Field North Team

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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The author(s) of this abstract have provided an email address for comments about the abstract: annh@astro.psu.edu

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