DETAILED SHAPE AND EVOLUTIONARY BEHAVIOR OF THE X-RAY LUMINOSITY FUNCTION OF ACTIVE GALACTIC NUCLEI

被引：91

作者：

Miyaji, T. ^{[1
,2
]}

Hasinger, G. ^{[3
]}

Salvato, M. ^{[4
]}

Brusa, M. ^{[4
,5
,6
]}

Cappelluti, N. ^{[6
]}

Civano, F. ^{[7
,8
]}

Puccetti, S. ^{[9
]}

Elvis, M. ^{[8
]}

Brunner, H. ^{[4
]}

Fotopoulou, S. ^{[10
]}

Ueda, Y. ^{[11
]}

Griffiths, R. E. ^{[12
]}

Koekemoer, A. M. ^{[13
]}

Akiyama, M. ^{[14
]}

Comastri, A. ^{[6
]}

Gilli, R. ^{[6
]}

Lanzuisi, G. ^{[6
]}

Merloni, A. ^{[4
]}

Vignali, C. ^{[5
,6
]}

机构：

[1] Univ Nacl Autonoma Mexico, Inst Astron Sede Ensenada, Ensenada 22860, Baja California, Mexico

[2] Univ Calif San Diego, Ctr Astrophys & Space Sci, La Jolla, CA 92093 USA

[3] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA

[4] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany

[5] Univ Bologna, DIFA Dipartimento Fis & Astron, I-40127 Bologna, Italy

[6] INAF Osservatorio Astron Bologna, I-40127 Bologna, Italy

[7] Yale Ctr Astron & Astrophys, New Haven, CT 06520 USA

[8] Smithsonian Astrophys Observ, Cambridge, MA 02138 USA

[9] ASI Sci Data Ctr, I-00044 Frascati, Italy

[10] Univ Geneva, CH-1290 Versoix, Switzerland

[11] Kyoto Univ, Fac Sci, Dept Astron, Sakyo Ku, Kyoto 6068502, Japan

[12] Univ Hawaii, Phys & Astron, Hilo, HI 96720 USA

[13] Space Telescope Sci Inst, Baltimore, MD 21218 USA

[14] Tohoku Univ, Astron Inst, Aoba Ku, Sendai, Miyagi 9808578, Japan

来源：

ASTROPHYSICAL JOURNAL | 2015年 / 804卷 / 02期

关键词：

galaxies: active; galaxies: luminosity function; mass function; quasars: general; X-rays: galaxies; WIDE-FIELD SURVEY; MEDIUM SENSITIVITY SURVEY; SUPERMASSIVE BLACK-HOLES; HALO OCCUPATION DISTRIBUTION; SPATIAL CORRELATION-FUNCTION; NEWTON SERENDIPITOUS SURVEY; CROSS-CORRELATION FUNCTION; DEEP ROSAT SURVEY; LARGE SKY SURVEY; LOG S-RELATIONS;

D O I：

10.1088/0004-637X/804/2/104

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We construct the rest-frame 2-10 keV intrinsic X-ray luminosity function (XLF) of active galactic nuclei (AGNs) from a combination of X-ray surveys from the all-sky Swift BAT survey to the Chandra Deep Field. South. We use similar to 3200 AGNs in our analysis, which covers six orders of magnitude in flux. The inclusion of XMM and Chandra COSMOS data has allowed us to investigate the detailed behavior of the XLF and evolution. In deriving our XLF, we take into account realistic AGN spectrum templates, absorption corrections, and probability. density distributions in photometric redshift. We present an analytical expression for the overall behavior of the XLF in terms of the luminosity-dependent density evolution, smoothed two-power-law expressions in 11 redshift shells, three-segment power-law expression of the number density evolution in four luminosity classes, and binned XLF. We observe a sudden flattening of the low luminosity end slope of the XLF slope at z greater than or similar to 0.6. Detailed structures of the AGN downsizing have also been revealed, where the number density curves have two clear breaks at all luminosity classes above log L-X > 43. The two-break structure is suggestive of two-phase AGN evolution, consisting of major merger triggering and secular processes.

引用

页数：25

共 115 条

[81] THE SPATIAL CLUSTERING OF ROSAT ALL-SKY SURVEY AGNs. II. HALO OCCUPATION DISTRIBUTION MODELING OF THE CROSS-CORRELATION FUNCTION [J].