HAL: hal-00660716, version 1

arXiv: 1005.3821

ADS Bibliographic id: 2010A&A...518L..13R

DOI: 10.1051/0004-6361/201014693

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Astronomy and Astrophysics 518 (2010) L13

The far-infrared/submillimeter properties of galaxies located behind the Bullet cluster

M. Rex 1, T. D. Rawle 2, E. Egami 2, P. G. Pérez-González 3, M. Zemcov 4, I. Aretxaga 4, S. M. Chung 4, D. Fadda 4, A. H. Gonzalez 4, D. H. Hughes 4, C. Horellou 4, D. Johansson 4, J.-P. Kneib 5, J. Richard 6, B. Altieri 7, A. K. Fiedler 4, M. J. Pereira 2, G. H. Rieke 2, I. Smail 8, I. Valtchanov 4, A. W. Blain 9, J. J. Bock 4, F. Boone 10, C. R. Bridge 9, B. Clement 5, F. Combes 11, C. D. Dowell 4, M. Dessauges-Zavadsky 12, O. Ilbert 5, R. J. Ivison 13, M. Jauzac 5, D. Lutz 14, A. Omont 15, R. Pelló 10, G. Rodighiero 4, D. Schaerer 10, G. P. Smith 16, 17, 18, G. L. Walth 2, P. van der Werf 19, M. W. Werner 4, J. E. Austermann 4, H. Ezawa 4, R. Kawabe 4, K. Kohno 4, T. A. Perera 4, K. S. Scott 4, G. W. Wilson 4, M. S. Yun 4

(2010-07)

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 μm 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 μm and AzTEC 1.1 mm data we fully constrain the spectral energy distributions of 19 MIPS 24 μm-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. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA. Data presented in this paper were analyzed using "The Herschel interactive processing environment (HIPE)", a joint development by the Herschel Science Ground Segment Consortium, consisting of ESA, the NASA Herschel Science Center, and the HIFI, PACS, and SPIRE consortia.Table 1 and Figs. 3, 4 are only available in electronic form at http://www.aanda.org

1:	Alfred Wegener Institute for Polar and Marine Research
	Helmholtz Center for Polar and Marine Research
2:	Steward Observatory
	University of Arizona
3:	Departamento de Física y Astronomía
	Universidad Complutense Madrid
4:	Autres
	AUTRE
5:	Laboratoire d'Astrophysique de Marseille (LAM)
	CNRS : UMR6110 – INSU – Université de Provence - Aix-Marseille I
6:	Centre de Recherche Astrophysique de Lyon (CRAL)
	CNRS : UMR5574 – INSU – Université Claude Bernard - Lyon I – École Normale Supérieure - Lyon
7:	XMM-Newton Science Operations Centre
	European Space Agency
8:	Institute for Computational Cosmology (ICC)
	University of Durham
9:	Department of Astronomy
	California Institute of Technology
10:	Institut de recherche en astrophysique et planétologie (IRAP)
	CNRS : UMR5277 – Université Paul Sabatier [UPS] - Toulouse III – Observatoire Midi-Pyrénées
11:	LVMT (LVMT)
	Université Paris-Est Marne-la-Vallée (UPEMLV)
12:	Observatoire de Geneve
	University of Geneva
13:	Royal Observatory Edinburgh
	Royal Observatory Edinburgh
14:	Max-Planck-Institut für extraterrestrische Physik
	Max-Planck-Institut
15:	Institut d'Astrophysique de Paris (IAP)
	CNRS : UMR7095 – INSU – Université Pierre et Marie Curie (UPMC) - Paris VI
16:	Univ. Birmingham
	Univ. Birmingham
17:	University of Bristol
	University of Bristol
18:	University of Reading (UOR)
	University of Reading
19:	Leiden Observatory
	University of Leiden

Subject

:

Sciences of the Universe/Astrophysics/Cosmology and Extra-Galactic Astrophysics Physics/Astrophysics/Cosmology and Extra-Galactic Astrophysics

Keyword(s): infrared: galaxies – submillimeter: galaxies – galaxies: evolution – galaxies: high-redshift – galaxies: clusters: general – gravitational lensing: strong

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Submitted on: Tuesday, 17 January 2012 14:36:54

Updated on: Thursday, 19 January 2012 09:21:52