MIPS J142824.0+352619: A Hyperluminous Starburst Galaxy at z = 1.325
C. Borys
(1)
,
A. W. Blain
(1)
,
Arjun Dey
(2)
,
E. Le Floc'H
(3, 4)
,
Buell T. Jannuzi
(2)
,
V. Barnard
(5)
,
Chao Bian
(1)
,
Mark Brodwin
(6)
,
K. Menéndez-Delmestre
(1)
,
D. Thompson
(1)
,
Kate Brand
(2)
,
M. J. I. Brown
(7)
,
C. D. Dowell
(1)
,
Peter Eisenhardt
(6)
,
D. Farrah
(8)
,
David T. Frayer
(9)
,
J. Higdon
(8)
,
Sarah J. U. Higdon
(8)
,
Thomas G. Phillips
(1)
,
B. T. Soifer
(1)
,
Daniel Stern
(5)
,
Dan W. Weedman
(8)
1
Cahill Center for Astronomy and Astrophysics
2 NOAO - National Optical Astronomy Observatory, Tucson
3 Steward Observatory
4 GEPI - Galaxies, Etoiles, Physique, Instrumentation
5 JAC - Joint Astronomy Centre
6 JPL - Jet Propulsion Laboratory
7 Princeton University
8 Department of Astronomy, Cornell University
9 SSC - Spitzer Science Center, California Institute of Technology
2 NOAO - National Optical Astronomy Observatory, Tucson
3 Steward Observatory
4 GEPI - Galaxies, Etoiles, Physique, Instrumentation
5 JAC - Joint Astronomy Centre
6 JPL - Jet Propulsion Laboratory
7 Princeton University
8 Department of Astronomy, Cornell University
9 SSC - Spitzer Science Center, California Institute of Technology
Résumé
Using the SHARC-II camera at the Caltech Submillimeter Observatory to obtain 350 mum images of sources detected with the MIPS instrument on Spitzer, we have discovered a remarkable object at z=1.325+/-0.002 with an apparent far-infrared luminosity of 3.2(+/-0.7)×1013 Lsolar. Unlike other z>1 sources of comparable luminosity selected from mid-IR surveys, MIPS J142824.0+352619 lacks any trace of AGN activity, and is likely a luminous analog of galaxies selected locally by IRAS, or at high redshift in the submillimeter. This source appears to be lensed by a foreground elliptical galaxy at z=1.034, although the amplification is likely modest (