WISE Discovery of Hyper Luminous Galaxies at z=2-4 and Their Implications for Galaxy and AGN Evolution

被引：0

作者：

Tsai, Chao-Wei ^{[1
]}

Eisenhardt, Peter ^{[2
]}

Wu, Jingwen ^{[2
]}

Bridge, Carrie ^{[3
]}

Assef, Roberto ^{[2
]}

Benford, Dominic ^{[4
]}

Blain, Andrew ^{[5
]}

Cutri, Roc ^{[1
]}

Griffith, Roger L. ^{[1
]}

Jarrett, Thomas ^{[1
]}

Lonsdale, Carol ^{[6
]}

Petty, Sara ^{[7
]}

Sayers, Jack

Stanford, Adam ^{[8
]}

Stern, Daniel ^{[2
]}

Wright, Edward L. ^{[7
]}

Yan, Lin ^{[1
]}

机构：

[1] CALTECH, Ctr Infrared Proc & Anal, Pasadena, CA 91125 USA

[2] CALTECH, Jet Prop Lab, Pasadena, CA 91125 USA

[3] CALTECH, Div Phys Math & Astron, Pasadena, CA 91125 USA

[4] NASA, Goddard Space Flight Ctr, \, Greenbelt, MD 20771 USA

[5] Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England

[6] Natl Radio Astron Observ, Charlottesville, VA 22901 USA

[7] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90024 USA

[8] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA

来源：

GALAXY MERGERS IN AN EVOLVING UNIVERSE | 2013年 / 477卷

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

On behalf of the WISE Science team, we present the discovery of a class of distant dust-enshrouded galaxies with extremely high luminosity. These galaxies are selected to have extreme red colors in the mid-IR using NASA's Wide-field Infrared Survey Explorer (WISE). They are faint in the optical and near-IR, predominantly at z=2-4, and with IR luminosity > 10(13)L(circle dot), making them Hyper-Luminous Infrared Galaxies (HyLIRGs). SEDs incorporating the WISE, Spitzer, and Herschel PACS and SPIRE photometry indicate hot dust dominates the bolometric luminosity, presumably powered by AGN. Preliminary multi-wavelength follow-up suggests that they are different from normal populations in the local M-sigma relation. Their low source density implies that these objects are either intrinsically rare, or a short-lived phase in a more numerous population. If the latter is the case, these hot, dust-enshrouded galaxies may be an early stage in the interplay between AGN and galaxies.

引用

页码：247 / +

页数：2

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