X-ray counts of active galactic nuclei in the EMSS sample

Details X-ray counts of active galactic nuclei in the EMSS sample X-ray counts of active galactic nuclei in the EMSS sample

Apr 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993cha%26a..17..121l&link_type=abstract

Chinese Astronomy and Astrophysics, Volume 17, Issue 2, p. 121-125.

Astronomy and Astrophysics

Astrophysics

Active Galactic Nuclei-Cosmology-X-Ray

Scientific paper

We have used the largest available AGN sample-the Extended Medium Sensitivity Survey (EMSS) to derive the relation between counts in the energy range 0.3-3.5 keV and flux over the range 1× 10-11-5 × 10-14 erg cm-2 s-1. The log N(> S) ~ log S relation is found to be linear with a gradient of α = - 1.59 +/- 0.06. We further calculate the contribution by AGN flux below 5 × 10-14 erg cm-2 s-1 to the X-rays to be 13.5%.

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