| Type de publication : |
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Preprint, Working Paper, Document sans référence, etc. |
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| Domaine : |
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| Titre : |
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Discovery of a Multiply-Lensed Submillimeter Galaxy in Early HerMES Herschel/SPIRE Data |
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| Auteur(s) : |
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A. Conley 1, A. Cooray, J. D. Vieira, E. A. González Solares, S. Kim, J. E. Aguirre, A. Amblard, R. Auld, A. J. Baker 2, A. Beelen 3, A. Blain, R. Blundell 4, J. Bock, C. M. Bradford, C. Bridge, D. Brisbin 5, D. Burgarella 6, J. M. Carpenter, P. Chanial 7, E. Chapin, N. Christopher, D. L. Clements, P. Cox 8, S. G. Djorgovski, C. D. Dowell 9, S. Eales, L. Earle, T. P. Ellsworth-Bowers, D. Farrah, A. Franceschini 10, D. Frayer, H. Fu 11, R. Gavazzi 9, J. Glenn, M. Griffin 12, M. A. Gurwell, M. Halpern, E. Ibar, R. J. Ivison 13, M. Jarvis, J. Kamenetzky, M. Krips 8, L. Levenson, R. Lupu, A. Mahabal, P. D. Maloney, C. Maraston, L. Marchetti 14, 15, G. Marsden, H. Matsuhara, A. M. J. Mortier, E. Murphy, B. J. Naylor, R. Neri 8, H. T. Nguyen 16, 17, S. J. Oliver, A. Omont 18, M. J. Page 19, A. Papageorgiou, C. P. Pearson 20, I. Pérez-Fournon, M. Pohlen, N. Rangwala, J. I. Rawlings, G. Raymond 15, D. Riechers, G. Rodighiero 9, I. G. Roseboom, M. Rowan-Robinson, B. Schulz, Douglas Scott, K. Scott, P. Serra, N. Seymour, D. L. Shupe, A. J. Smith 21, M. Symeonidis, K. E. Tugwell, M. Vaccari, E. Valiante, I. Valtchanov 9, A. Verma, M. P. Viero, L. Vigroux, L. Wang, D. Wiebe, G. Wright, C. K. Xu 22, G. Zeimann, M. Zemcov 9, J. Zmuidzinas 23 |
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| Laboratoire : |
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Department of Astronomy and Astrophysics |
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http://www.astro.utoronto.ca/ |
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University of Toronto |
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Department of Astronomy and Astrophysics, University of Toronto, 50 St. George St, Room 1403, Toronto, ON M5S 3H4, Canada |
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Canada |
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Max-Planck-Institut für Radioastronomie (MPIFR) |
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http://www.mpifr-bonn.mpg.de/ |
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Max-Planck-Institut |
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Auf dem Hügel 69 D-53121 Bonn |
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Allemagne |
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Institut d'astrophysique spatiale (IAS) |
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http://www.ias.u-psud.fr |
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CNRS : UMR8617 – INSU – Université Paris XI - Paris Sud |
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bat. 121 91405 ORSAY CEDEX |
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France |
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Centre for Astronomy |
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Harvard university (Cambridge, USA) |
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France |
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Bucknell University |
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Bucknell University |
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Lewisburg, PA, USA |
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États-Unis |
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Laboratoire d'Astrophysique de Marseille (LAM) |
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http://www.oamp.fr/infoglueDeliverLive/www/LAM |
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CNRS : UMR6110 – INSU – Université de Provence - Aix-Marseille I |
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Pôle de l'Étoile Site de Château-Gombert 38, rue Frédéric Joliot-Curie 13388 Marseille cedex 13 |
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France |
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Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA) |
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CEA : DSM/DAPNIA |
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France |
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Institut de RadioAstronomie Millimétrique (IRAM) |
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http://www.iram.fr/ |
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CNRS : UPS2074 |
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300 rue de la Piscine, Domaine Universitaire 38406 Saint Martin d'Hères |
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France |
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| 9 : |
Autres |
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AUTRE |
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France |
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Laboratoire Colloïdes et Matériaux Divisés (LCMD) |
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http://www.lcmd.espci.fr/ |
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CNRS : UMR7195 – ESPCI ParisTech |
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10 rue Vauquelin 75005 Paris |
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France |
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Earthquake Administration of Yunnan Province |
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Earthquake Administration of Yunnan Province |
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Chine |
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| 12 : |
School of Physics & Astronomy |
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Cardiff University |
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Cardiff University, Queens Buildings The Parade, Cardiff CF24 3AA |
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Royaume-Uni |
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| 13 : |
Royal Observatory Edinburgh |
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http://www.roe.ac.uk/ |
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Royal Observatory Edinburgh |
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UK Astronomy Technology Centre, Royal Observatory Edinburgh, Blackford Hill, EH9 3HJ |
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Royaume-Uni |
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Service de Chimie Physique (SCP) |
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CEA : DEN/DPC/SCP |
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France |
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| 15 : |
Science et Ingénierie des Matériaux et Procédés (SIMAP) |
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http://simap.grenoble-inp.fr/ |
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CNRS : UMR5266 – Université Joseph Fourier - Grenoble I – Institut National Polytechnique de Grenoble (INPG) |
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1130 rue de la Piscine, BP 75 38402 Saint Martin D'Hères |
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France |
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| 16 : |
Laboratoire de photonique et de nanostructures (LPN) |
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CNRS : UPR20 |
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Route de Nozay 91460 MARCOUSSIS |
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France |
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| 17 : |
Centre de recherches Paul Pascal (CRPP) |
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http://www.crpp-bordeaux.cnrs.fr/ |
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CNRS : UPR8641 |
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115, Av Albert Schweitzer 33600 PESSAC |
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France |
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Institut d'Astrophysique de Paris (IAP) |
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http://www.iap.fr/ |
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CNRS : UMR7095 – INSU – Université Pierre et Marie Curie [UPMC] - Paris VI |
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98bis, bd Arago - 75014 Paris France |
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France |
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Department of Chemistry and Biochemistry |
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University of California at Los Angeles |
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États-Unis |
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National Institute of Water and Atmospheric Research |
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National Institute of Water and Atmospheric Research |
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Nouvelle-Zélande |
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British Antarctic Survey (BAS) |
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http://www.antarctica.ac.uk/ |
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Natural Environment Research Council |
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British Antarctic Survey High Cross, Madingley Road CAMBRIDGE CB3 0ET United Kingdom Telephone: +44 (0)1223 221400 Fax: +44 (0)1223 362616 |
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Royaume-Uni |
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| 22 : |
Laboratoire de Mathématiques Raphaël Salem (LMRS) |
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http://www.univ-rouen.fr/LMRS |
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CNRS : UMR6085 – Université de Rouen |
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France |
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| 23 : |
CALTECH, Cahill Ctr Astron & Astrophys 301 17, Pasadena, CA 91125 USA |
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CALTECH Cahill Ctr Astron & Astro |
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États-Unis |
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| Résumé : |
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We report the discovery of a bright ($f(250\mum) > 400$ mJy), multiply-lensed submillimeter galaxy \obj\ in {\it Herschel}/SPIRE Science Demonstration Phase data from the HerMES project. Interferometric 880\mum\ Submillimeter Array observations resolve at least four images with a large separation of $\sim 9\arcsec$. A high-resolution adaptive optics $K_p$ image with Keck/NIRC2 clearly shows strong lensing arcs. Follow-up spectroscopy gives a redshift of $z=2.9575$, and the lensing model gives a total magnification of $\mu \sim 11 \pm 1$. The large image separation allows us to study the multi-wavelength spectral energy distribution (SED) of the lensed source unobscured by the central lensing mass. The far-IR/millimeter-wave SED is well described by a modified blackbody fit with an unusually warm dust temperature, $88 \pm 3$ K. We derive a lensing-corrected total IR luminosity of $(1.43 \pm 0.09) \times 10^{13}\, \mathrm{L}_{\odot}$, implying a star formation rate of $\sim 2500\, \mathrm{M}_{\odot}\, \mathrm{yr}^{-1}$. However, models primarily developed from brighter galaxies selected at longer wavelengths are a poor fit to the full optical-to-millimeter SED. A number of other strongly lensed systems have already been discovered in early {\it Herschel} data, and many more are expected as additional data are collected. |
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Langue du texte
intégral : |
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Anglais |
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Date de production,
écriture : |
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20/04/2011 |
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| Commentaire : |
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Accepted for publication in ApJL |
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