[O III] λ5007 AND X-RAY PROPERTIES OF A COMPLETE SAMPLE OF HARD X-RAY SELECTED AGNS IN THE LOCAL UNIVERSE

被引：63

作者：

Ueda, Y. ^{[1
]}

Hashimoto, Y. ^{[2
]}

Ichikawa, K. ^{[1
,3
]}

Ishino, Y. ^{[1
]}

Kniazev, A. Y. ^{[4
,5
,6
]}

Vaeisaenen, P. ^{[4
,5
]}

Ricci, C. ^{[1
,7
,8
]}

Berney, S. ^{[9
]}

Gandhi, P. ^{[10
]}

Koss, M. ^{[9
]}

Mushotzky, R. ^{[11
]}

Terashima, Y. ^{[12
]}

Trakhtenbrot, B. ^{[9
]}

Crenshaw, M. ^{[13
]}

机构：

[1] Kyoto Univ, Dept Astron, Kyoto 6068502, Japan

[2] Natl Taiwan Normal Univ, Dept Earth Sci, Taipei 11677, Taiwan

[3] Natl Astron Observ, Mitaka, Tokyo 1818588, Japan

[4] S African Astron Observ, ZA-7935 Cape Town, South Africa

[5] Southern African Large Telescope Fdn, ZA-7935 Cape Town, South Africa

[6] Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Moscow 119992, Russia

[7] Pontificia Univ Catolica Chile, Inst Astrofis, Santiago 22, Chile

[8] EMBIGGEN Anillo, Concepcion, Chile

[9] ETH, Inst Astron, Dept Phys, CH-8093 Zurich, Switzerland

[10] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England

[11] Univ Maryland, Dept Astron, College Pk, MD 20742 USA

[12] Ehime Univ, Dept Phys, Matsuyama, Ehime 7908577, Japan

[13] Georgia State Univ, Dept Phys & Astron, Atlanta, GA 30303 USA

来源：

ASTROPHYSICAL JOURNAL | 2015年 / 815卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

galaxies: active; galaxies: Seyfert; quasars: general; X-rays: galaxies; ACTIVE GALACTIC NUCLEI; SEYFERT; 2; GALAXIES; DIGITAL SKY SURVEY; INFRARED-SELECTED SAMPLE; SWIFT BAT SURVEY; LUMINOSITY FUNCTION; SUZAKU VIEW; SPECTRAL PROPERTIES; LINE EMISSION; XMM-NEWTON;

D O I：

10.1088/0004-637X/815/1/1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the correlation between the [O III]..5007 and X-ray luminosities of local active galactic nuclei (AGNs), using a complete, hard X-ray (>10 keV) selected sample in the Swift/BAT 9-month catalog. From our optical spectroscopic observations at the South African Astronomical Observatory and the literature, a catalog of [O III]..5007 line flux for all 103 AGNs at Galactic latitudes of vertical bar b vertical bar > 15 degrees is compiled. Significant correlations with intrinsic X-ray luminosity (L-X) are found for both observed (L[O III]) and extinction-corrected (L-[O (cor)(III])) luminosities, separately for X-ray unabsorbed and absorbed AGNs. We obtain the regression form of L-[O III] alpha L-2-10keV(1.18 +/- 0.07) and L-[O III](cor) alpha L-2-10keV(1.16 +/- 0.09) from the whole sample. The absorbed AGNs with low (<0.5%) scattering fractions in soft X-rays show on average smaller L-[OIII]/L-X and L-[OIII](cor)/L-X ratios than the other absorbed AGNs, while those in edge-on host galaxies do not. These results suggest that a significant fraction of this population is buried in tori with small opening angles. By using these L-[OIII] versus L-X correlations, the X-ray luminosity function (LF) of local AGNs (including Compton-thick AGNs) in a standard population synthesis model gives much better agreement with the [O III] lambda 5007 LF derived from the Sloan Digital Sky Survey than previously reported. This confirms that hard X-ray observations are a very powerful tool to find AGNs with high completeness.

引用

页数：14

共 61 条

[1] [O III]lambda 5007, near-IR and X-ray properties of Seyfert 2 galaxies [J].