Galaxies at the detection limits of deep X-ray surveys

Details Galaxies at the detection limits of deep X-ray surveys Galaxies at the detection limits of deep X-ray surveys

Jan 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004adspr..34.2486g&link_type=abstract

Advances in Space Research, Volume 34, Issue 12, p. 2486-2491.

Computer Science

Scientific paper

The great sensitivities of the Chandra X-ray Observatory and XMM-Newton have allowed us to begin to explore the X-ray emission from galaxies at moderate to high redshift. By using the stacking method, we show that we can detect the ensemble emission from normal elliptical, spiral and irregular galaxies out to redshifts approaching unity. The average X-ray luminosity of these galaxy types can then be compared with the results of models of the evolution in the numbers of low-mass and high-mass X-ray binaries and can possibly be used to constrain models of star formation.

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