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

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003ap%26ss.284..961g&link_type=abstract

Astrophysics and Space Science, v. 284, Issue 2, p. 961-964 (2003).

Astronomy and Astrophysics

Astrophysics

X-Rays, Deep Surveys

Scientific paper

The great sensitivities of the Chandra X-ray Observatory and XMM-Newton are allowing us 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 one. The average X-ray luminosity can then be compared with the results of models of the evolution in the numbers of X-ray binaries and can possibly be used to constrain models of star formation.

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