期刊
ASTRONOMY & ASTROPHYSICS
卷 369, 期 1, 页码 49-56出版社
EDP SCIENCES S A
DOI: 10.1051/0004-6361:20010102
关键词
galaxies : active; galaxies : evolution; (galaxies :) quasars : general; X-rays : galaxies; X-rays : general
This is the second paper of our investigation of the 0.5-2 keV soft X-ray luminosity function (SXLF) of active galactic nuclei (AGN) using results from ROSAT surveys of various depth. The large dynamic range of the combined sample, from shallow large-area ROSAT All-Sky Survey (RASS)-based samples to the satellite's deepest pointed observation on the Lockman Hole, enabled us to trace the behavior of the SXLF. While the first paper (Miyaji et al. 2000, hereafter Paper I) emphasized the global behavior of the SXLF, cosmological evolution and contribution to the soft X-ray background, this paper presents actual numerical values for practical use of our results. To present the binned SXLF, we have used an improved estimator, which is free from biases associated with the conventional SigmaV(a)(-1) estimator.
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