The far-infrared/submillimeter properties of galaxies located behind the Bullet cluster
Artikel i vetenskaplig tidskrift, 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.
infrared: galaxies
1e0657-56
RS
gravitational
evolution
redshift deadlock
bright
lensing: strong
breaking
submillimeter: galaxies
galaxies: high-redshift
submillimeter galaxies
galaxies: evolution
star-forming galaxies
galaxies: clusters: general
Författare
M. Rex
University of Arizona
T.D. Rawle
University of Arizona
E. Egami
University of Arizona
P.G.P. Pérez-González
Universidad Complutense de Madrid
University of Arizona
M. Zemcov
California Institute of Technology (Caltech)
I. Aretxaga
Instituto Nacional de Astrofísica, Óptica y Electrońica
S. M. Chung
University of Florida
D. Fadda
California Institute of Technology (Caltech)
A. H. Gonzalez
University of Florida
D. H. Hughes
Instituto Nacional de Astrofísica, Óptica y Electrońica
Cathy Horellou
Chalmers, Institutionen för radio- och rymdvetenskap, Radioastronomi och astrofysik
Daniel Johansson
Chalmers, Institutionen för radio- och rymdvetenskap, Radioastronomi och astrofysik
J.P.J.P. Kneib
Laboratoire d'Astrophysique de Marseille
J. Richard
Durham University
B. Altiéri
Europeiska rymdorganisationen (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
Europeiska rymdorganisationen (ESA)
A.W. Blain
California Institute of Technology (Caltech)
J. J. Bock
California Institute of Technology (Caltech)
F. Boone
LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres
Université de Toulouse
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
Université de Genève
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-Gesellschaft
A.A. Omont
Université Pierre et Marie Curie (UPMC)
R. Pelló
Université de Toulouse
G. Rodighiero
Università di Padova
D. Schaerer
Université de Genève
Université de Toulouse
G. P. Smith
University of Birmingham
G.L. Walth
University of Arizona
P. van der Werf
Universiteit Leiden
M. W. Werner
California Institute of Technology (Caltech)
J. E. Austermann
University of Colorado
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 L13Ämneskategorier (SSIF 2011)
Astronomi, astrofysik och kosmologi
DOI
10.1051/0004-6361/201014693