CLUSTERING OF INTERMEDIATE LUMINOSITY X-RAY SELECTED AGN AT Z ∼ 3

被引：0

作者：

Francke, H. ^{[1
,2
]}

Gawiser, E. ^{[2
,3
,4
,5
]}

Lira, P. ^{[1
]}

Treister, E. ^{[6
]}

Virani, S. ^{[2
]}

Cardamone, C. ^{[2
]}

Urry, C. M. ^{[4
,5
]}

van Dokkum, P. ^{[2
]}

Quadri, R. ^{[2
]}

机构：

[1] Univ Chile, Dept Astron, Casilla 36-D, Santiago, Chile

[2] Yale Univ, Dept Astron, New Haven, CT 06520 USA

[3] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA

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

[5] Yale Univ, Dept Phys, New Haven, CT 06520 USA

[6] European Southern Observ, Santiago, Chile

来源：

XII IAU REGIONAL LATIN AMERICAN MEETING | 2009年 / 35卷

关键词：

galaxies: active; galaxies: high-redshift; large-scale structure of universe; DEEP FIELD-SOUTH; ACTIVE GALACTIC NUCLEI; POINT-SOURCE CATALOGS; LYMAN-BREAK GALAXIES; QUASARS; DEPENDENCE; EVOLUTION; MUSYC;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the first clustering results of X-ray selected AGN at z similar to 3. Using Chandra X-ray imaging and UVR optical colors from MUSYC photometry in the ECDF-S field, we selected a sample of 58 z similar to 3 AGN candidates. From the optical data we also selected 1385 LBG at 2.8 < z < 3.8 with R < 25.5. We performed auto-correlation and cross-correlation analyses, and here we present results for the clustering amplitudes and dark matter halo masses of each sample. For the LBG we find a correlation length Of r(0,LBG) = 6.7 +/- 0.5 Mpc, implying a bias value of 3.5 +/- 0.3 and dark matter (DM) halo masses of log(M-min/M-circle dot) = 11.8 +/- 0.1. The AGN-LBG cross-correlation yields r(0,AGN-LBC) = 8.7 +/- 1.9 Mpc, implying for AGN at 2.8 < z 3.8 a bias value of 5.5 +/- 2.0 and DM halo masses of log(M-min/M-circle dot) = 12.6(-0.8)(+0.5). Evolution of dark matter halos in the Lambda CDM cosmology implies that today these z - 3 AGN are found in high inass galaxies with a typical luminosity 7(-2)(+4) L*.

引用

页码：221 / +

页数：2

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