The far-infrared/submillimeter properties of galaxies located behind the Bullet cluster
Journal article, 2010
The Herschel Lensing Survey (HLS) takes advantage of gravitational lensing by massive galaxy clusters to sample a population of high-redshift galaxies which are too faint to be detected above the confusion limit of current far-infrared/submillimeter telescopes. Measurements from 100-500 mu m bracket the peaks of the far-infrared spectral energy distributions of these galaxies, characterizing their infrared luminosities and star formation rates. We introduce initial results from our science demonstration phase observations, directed toward the Bullet cluster (1E0657-56). By combining our observations with LABOCA 870 mu m and AzTEC 1.1 mm data we fully constrain the spectral energy distributions of 19 MIPS 24 mu m-selected galaxies which are located behind the cluster. We find that their colors are best fit using templates based on local galaxies with systematically lower infrared luminosities. This suggests that our sources are not like local ultra-luminous infrared galaxies in which vigorous star formation is contained in a compact highly dust-obscured region. Instead, they appear to be scaled up versions of lower luminosity local galaxies with star formation occurring on larger physical scales.
submillimeter galaxies
evolution
gravitational
submillimeter: galaxies
RS
redshift deadlock
galaxies: clusters: general
breaking
infrared: galaxies
star-forming galaxies
galaxies: evolution
1e0657-56
bright
lensing: strong
galaxies: high-redshift
Author
M. Rex
University of Arizona
T.D. Rawle
University of Arizona
E. Egami
University of Arizona
P.G.P. Pérez-González
University of Arizona
Complutense University
M. Zemcov
California Institute of Technology (Caltech)
I. Aretxaga
National Institute of Astrophysics, Optics and Electronics
S. M. Chung
University of Florida
D. Fadda
California Institute of Technology (Caltech)
A. H. Gonzalez
University of Florida
D. H. Hughes
National Institute of Astrophysics, Optics and Electronics
Cathy Horellou
Chalmers, Department of Radio and Space Science, Radio Astronomy and Astrophysics
Daniel Johansson
Chalmers, Department of Radio and Space Science, Radio Astronomy and Astrophysics
J.P.J.P. Kneib
Laboratoire d'Astrophysique de Marseille
J. Richard
Durham University
B. Altiéri
European Space Agency (ESA)
A. K. Fiedler
University of Arizona
M. J. Pereira
University of Arizona
G. H. Rieke
University of Arizona
I. Smail
Durham University
I. Valtchanov
European Space Agency (ESA)
A.W. Blain
California Institute of Technology (Caltech)
J. J. Bock
California Institute of Technology (Caltech)
F. Boone
University of Toulouse
LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres
C. R. Bridge
California Institute of Technology (Caltech)
B. Clément
Laboratoire d'Astrophysique de Marseille
F. Combes
LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres
C. D. Dowell
California Institute of Technology (Caltech)
M. Dessauges-Zavadsky
University of Geneva
O. Ilbert
Laboratoire d'Astrophysique de Marseille
R. J. Ivison
University of Edinburgh
Royal Observatory
Mathilde Jauzac
Laboratoire d'Astrophysique de Marseille
D. Lutz
Max Planck Society
A.A. Omont
Pierre and Marie Curie University (UPMC)
R. Pelló
University of Toulouse
G. Rodighiero
University of Padua
D. Schaerer
University of Geneva
University of Toulouse
G. P. Smith
University of Birmingham
G.L. Walth
University of Arizona
P. van der Werf
Leiden University
M. W. Werner
California Institute of Technology (Caltech)
J. E. Austermann
University of Colorado at Boulder
H. Ezawa
National Astronomical Observatory of Japan
R. Kawabe
National Astronomical Observatory of Japan
K. Kohno
University of Tokyo
Research Center for the Early Universe
T. A. Perera
Illinois Wesleyan University
K. S. Scott
University of Pennsylvania
G. W. Wilson
University of Massachusetts
A. S. Yun
University of Massachusetts
Astronomy and Astrophysics
0004-6361 (ISSN) 1432-0746 (eISSN)
Vol. 518 Article Number: L13 L13Subject Categories (SSIF 2011)
Astronomy, Astrophysics and Cosmology
DOI
10.1051/0004-6361/201014693