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.

redshift deadlock

bright

gravitational

star-forming galaxies

submillimeter galaxies

lensing: strong

galaxies: evolution

RS

1e0657-56

infrared: galaxies

galaxies: clusters: general

evolution

galaxies: high-redshift

submillimeter: galaxies

breaking

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

CalTech

Jet Propulsion Laboratory, California Institute of Technology

I. Aretxaga

Instituto Nacional de Astrofisica Optica y Electronica

S. M. Chung

University of Florida

D. Fadda

CalTech

A. H. Gonzalez

University of Florida

D. H. Hughes

Instituto Nacional de Astrofisica Optica y Electronica

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

University of Durham

B. Altiéri

European Space Astronomy Centre (ESA)

A. K. Fiedler

University of Arizona

M. J. Pereira

University of Arizona

G. H. Rieke

University of Arizona

I. Smail

University of Durham

I. Valtchanov

European Space Astronomy Centre (ESA)

A.W. Blain

CalTech

J. J. Bock

CalTech

Jet Propulsion Laboratory, California Institute of Technology

F. Boone

LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres

Université de Toulouse

C. R. Bridge

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

Jet Propulsion Laboratory, California Institute of Technology

CalTech

M. Dessauges-Zavadsky

Universite de Geneve

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-institutet

A.A. Omont

Université Pierre et Marie Curie (UPMC)

R. Pelló

Université de Toulouse

G. Rodighiero

Università di Padova

D. Schaerer

Université de Toulouse

Universite de Geneve

G. P. Smith

University of Birmingham

G.L. Walth

University of Arizona

P. van der Werf

Universiteit Leiden

M. W. Werner

Jet Propulsion Laboratory, California Institute of Technology

J. E. Austermann

University of Colorado at Boulder

H. Ezawa

National Institutes of Natural Sciences - National Astronomical Observatory of Japan

R. Kawabe

National Institutes of Natural Sciences - National Astronomical Observatory of Japan

K. Kohno

Research Center for the Early Universe

University of Tokyo

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 L13

Ämneskategorier

Astronomi, astrofysik och kosmologi

DOI

10.1051/0004-6361/201014693