An extended Herschel drop-out source in the center of AS1063: A normal dusty galaxy at z = 6.1 or SZ substructures?
Journal article, 2013
In the course of our 870 μm APEX/LABOCA follow-up of the Herschel Lensing Survey we have detected a source in AS1063 (RXC J2248.7-4431) that has no counterparts in any of the Herschel PACS/SPIRE bands, it is a Herschel "drop-out" with S870=S500 ≥ 0:5. The 870 μm emission is extended and centered on the brightest cluster galaxy, suggesting either a multiply imaged background source or substructure in the Sunyaev-Zel'dovich increment due to inhomogeneities in the hot cluster gas of this merging cluster. We discuss both interpretations with emphasis on the putative lensed source. Based on the observed properties and on our lens model we find that this source may be the first submillimeter galaxy (SMG) with a moderate far-infrared (FIR) luminosity (LFIR. © ESO 2013.
Submillimeter: galaxies
Galaxies: high-redshift
Galaxies: evolution
Galaxies: star formation
Author
F. Boone
University of Toulouse
Centre national de la recherche scientifique (CNRS)
B. Clément
University of Arizona
J. Richard
Université de Lyon
D. Schaerer
Centre national de la recherche scientifique (CNRS)
University of Geneva
D. Lutz
Max Planck Society
A. Weiß
Max Planck Society
M. Zemcov
California Institute of Technology (Caltech)
E. Egami
University of Arizona
T.D. Rawle
European Space Astronomy Centre (ESAC)
G.L. Walth
University of Arizona
J.P.J.P. Kneib
Laboratoire d'Astrophysique de Marseille
Swiss Federal Institute of Technology in Lausanne (EPFL)
F. Combes
LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres
I.A.N. Smail
Durham University
A.M. Swinbank
Durham University
B. Altiéri
European Space Astronomy Centre (ESAC)
A.W. Blain
University Of Leicester
S.C. Chapman
Dalhousie University
M. Dessauges-Zavadsky
University of Geneva
R.J. Ivison
University of Edinburgh
Kirsten Kraiberg Knudsen
Chalmers, Earth and Space Sciences, Radio Astronomy and Astrophysics
A.A. Omont
Pierre and Marie Curie University (UPMC)
R. Pelló
University of Toulouse
Centre national de la recherche scientifique (CNRS)
P.G.P. Pérez-González
Complutense University
I. Valtchanov
European Space Astronomy Centre (ESAC)
P.P. van der Werf
Leiden University
M.A. Zamojski
University of Geneva
Astronomy and Astrophysics
0004-6361 (ISSN) 1432-0746 (eISSN)
Vol. 559 L1- A559Subject Categories (SSIF 2011)
Astronomy, Astrophysics and Cosmology
Roots
Basic sciences
DOI
10.1051/0004-6361/201322552