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Herschel deep far-infrared counts through Abell 2218 cluster-lens

Authors :
G. Rodighiero
Ángel Bongiovanni
Roberto Maiolino
Raanan Nordon
Albrecht Poglitsch
I. Valtchanov
Ekkehard Wieprecht
P. Popesso
Bruno Altieri
Dieter Lutz
J. Cepa
Johan Richard
Eckhard Sturm
Antonio Cava
E. Daddi
P. Andreani
H. Dominguez
A. Cimatti
A. M. Pérez García
J. P. Kneib
Reinhard Genzel
Lijing Shao
Laure Ciesla
D. Elbaz
S. Berta
M. Wetzstein
M. Sánchez-Portal
Carlotta Gruppioni
L. Riguccini
Georgios E. Magdis
Linda J. Tacconi
Francesca Pozzi
H. Aussel
L. Metcalfe
P. Santini
Amelie Saintonge
N. M. Förster Schreiber
Benjamin Magnelli
XMM-Newton Science Operations Centre
European Space Agency (ESA)
AUTRES
Max-Planck-Institut für Extraterrestrische Physik (MPE)
Laboratoire d'Astrophysique de Marseille (LAM)
Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)
Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112))
Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)
Station de Pathologie Végétale [Angers]
Institut National de la Recherche Agronomique (INRA)
Max Planck Institute for Extraterrestrial Physics (MPE)
Max-Planck-Gesellschaft
Department of Physics [Berkeley]
University of California [Berkeley]
University of California-University of California
Institut d'astrophysique spatiale (IAS)
Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)
Centre de Recherche Astrophysique de Lyon (CRAL)
École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL)
Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)
Laboratoire de Mecanique des Fluides et d'Acoustique (LMFA)
École Centrale de Lyon (ECL)
Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL)
Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon)
Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)
Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES)
Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)
Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)
B. Altieri
S. Berta
D. Lutz
J.-P. Kneib
L. Metcalfe
P. Andreani
H. Aussel
A. Bongiovanni
A. Cava
J. Cepa
L. Ciesla
A. Cimatti
E. Daddi
H. Dominguez
D. Elbaz
N.M. Forster Schreiber
R. Genzel
C. Gruppioni
B. Magnelli
G. Magdi
R. Maiolino
R. Nordon
A.M. Perez Garcia
A. Poglitsch
P. Popesso
F. Pozzi
J. Richard
L. Riguccini
G. Rodighiero
A. Saintonge
P. Santini
M. Sanchez-Portal
L. Shao
E. Sturm
L.J. Tacconi
I. Valtchanov
M. Wetzstein
E. Wieprecht
Agence Spatiale Européenne = European Space Agency (ESA)
Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112))
University of California [Berkeley] (UC Berkeley)
University of California (UC)-University of California (UC)
Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES)
École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL)
Source :
Astronomy and Astrophysics-A&A, Astronomy and Astrophysics-A&A, EDP Sciences, 2010, 518, pp.L17. ⟨10.1051/0004-6361/201014634⟩, Scopus-Elsevier, Astronomy and Astrophysics-A&A, 2010, 518, pp.L17. ⟨10.1051/0004-6361/201014634⟩
Publication Year :
2016

Abstract

Gravitational lensing by massive galaxy clusters allows study of the population of intrinsically faint infrared galaxies that lie below the sensitivity and confusion limits of current infrared and submillimeter telescopes. We present ultra-deep PACS 100 and 160 microns observations toward the cluster lens Abell 2218, to penetrate the Herschel confusion limit. We derive source counts down to a flux density of 1 mJy at 100 microns and 2 mJy at 160 microns, aided by strong gravitational lensing. At these levels, source densities are 20 and 10 beams/source in the two bands, approaching source density confusion at 160 microns. The slope of the counts below the turnover of the Euclidean-normalized differential curve is constrained in both bands and is consistent with most of the recent backwards evolutionary models. By integrating number counts over the flux range accessed by Abell 2218 lensing (0.94-35 mJy at 100 microns and 1.47-35 mJy at 160 microns, we retrieve a cosmic infrared background (CIB) surface brightness of ~8.0 and ~9.9 nW m^-2 sr^-1, in the respective bands. These values correspond to 55% (+/- 24%) and 77% (+/- 31%) of DIRBE direct measurements. Combining Abell 2218 results with wider/shallower fields, these figures increase to 62% (+/- 25%) and 88% (+/- 32%) CIB total fractions, resolved at 100 and 160 microns, disregarding the high uncertainties of DIRBE absolute values.<br />Accepted for publication on the A&A Herschel Special Issue, final version

Details

Language :
English
ISSN :
00046361
Database :
OpenAIRE
Journal :
Astronomy and Astrophysics-A&A, Astronomy and Astrophysics-A&A, EDP Sciences, 2010, 518, pp.L17. ⟨10.1051/0004-6361/201014634⟩, Scopus-Elsevier, Astronomy and Astrophysics-A&A, 2010, 518, pp.L17. ⟨10.1051/0004-6361/201014634⟩
Accession number :
edsair.doi.dedup.....9dff4f135ab6f54a8262ff605f6d4b99
Full Text :
https://doi.org/10.1051/0004-6361/201014634