NO CLEAR SUBMILLIMETER SIGNATURE OF SUPPRESSED STAR FORMATION AMONG X-RAY LUMINOUS ACTIVE GALACTIC NUCLEI

被引：138

作者：

Harrison, C. M. ^{[1
]}

Alexander, D. M. ^{[1
]}

Mullaney, J. R. ^{[1
]}

Altieri, B. ^{[2
]}

Coia, D. ^{[2
]}

Charmandaris, V. ^{[3
,4
]}

Daddi, E. ^{[5
]}

Dannerbauer, H. ^{[6
]}

Dasyra, K. ^{[7
]}

Del Moro, A. ^{[1
]}

Dickinson, M. ^{[8
]}

Hickox, R. C. ^{[9
]}

Ivison, R. J. ^{[10
]}

Kartaltepe, J. ^{[8
]}

Le Floc'h, E. ^{[5
]}

Leiton, R. ^{[5
,11
]}

Magnelli, B. ^{[12
]}

Popesso, P. ^{[12
]}

Rovilos, E. ^{[1
]}

Rosario, D. ^{[12
]}

Swinbank, A. M. ^{[1
]}

机构：

[1] Univ Durham, Dept Phys, Durham DH1 3LE, England

[2] European Space Astron Ctr, Herschel Sci Ctr, E-28691 Madrid, Spain

[3] Univ Crete, Dept Phys, Iraklion 71003, Greece

[4] Univ Crete, Inst Theoret & Computat Phys, Iraklion 71003, Greece

[5] Univ Paris Diderot, CEA Saclay, Serv Astrophys, Lab AIM,CEA,DSM,CNRS,Irfu, F-91191 Gif Sur Yvette, France

[6] Univ Vienna, Inst Astrophys, A-1180 Vienna, Austria

[7] Observ Paris, LERMA, CNRS, UMR8112, F-75014 Paris, France

[8] Natl Opt Astron Observ, Tucson, AZ 85719 USA

[9] Dartmouth Coll, Dept Phys & Astron, Hanover, NH 03755 USA

[10] UK Astron Technol Ctr, Royal Observ, Edinburgh EH9 3HJ, Midlothian, Scotland

[11] Univ Concepcion, Dept Astron, Concepcion, Chile

[12] Max Planck Inst Extraterr Phys MPE, D-85741 Garching, Germany

来源：

ASTROPHYSICAL JOURNAL LETTERS | 2012年 / 760卷 / 01期

关键词：

galaxies: active; galaxies: evolution; galaxies: star formation; X-rays: general; FAR-INFRARED PROPERTIES; GALAXY FORMATION; SOURCE CATALOGS; GOODS-HERSCHEL; BLACK-HOLES; AGN HOSTS; OUTFLOWS; FEEDBACK; QUASARS; MERGERS;

D O I：

10.1088/2041-8205/760/1/L15

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Many theoretical models require powerful active galactic nuclei (AGNs) to suppress star formation in distant galaxies and reproduce the observed properties of today's massive galaxies. A recent study based on Herschel-SPIRE submillimeter observations claimed to provide direct support for this picture, reporting a significant decrease in the mean star formation rates (SFRs) of the most luminous AGNs (L-X > 10(44) erg s(-1)) at z approximate to 1-3 in the Chandra Deep Field-North (CDF-N). In this Letter, we extend these results using Herschel-SPIRE 250 mu m data in the COSMOS and Chandra Deep Field-South fields to achieve an order-of-magnitude improvement in the number of sources at L-X > 10(44) erg s(-1). On the basis of our analysis, we find no strong evidence for suppressed star formation in L-X > 1044 erg s(-1) AGNs at z approximate to 1-3. The mean SFRs of the AGNs are constant over the broad X-ray luminosity range of L-X approximate to 10(43)-10(45) erg s(-)1 (with mean SFRs consistent with typical star-forming galaxies at z approximate to 2; < SFRs > approximate to 100-200 M-circle dot yr(-1)). We suggest that the previous CDF-N results were likely due to low number statistics. We discuss our results in the context of current theoretical models.

引用

页数：5

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