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HerMES: A Deficit in the Surface Brightness of the Cosmic Infrared Background due to Galaxy Cluster Gravitational Lensing

Zemcov, M. and Cooray, A. and Bock, J. and Dowell, C. D. and Nguyen, H. T. and Schulz, B. and Shupe, D. L. and Viero, M. (2013) HerMES: A Deficit in the Surface Brightness of the Cosmic Infrared Background due to Galaxy Cluster Gravitational Lensing. Astrophysical Journal Letters, 769 (2). Art. No. L31. ISSN 2041-8205. https://resolver.caltech.edu/CaltechAUTHORS:20130709-110259992

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Abstract

We have observed four massive galaxy clusters with the SPIRE instrument on the Herschel Space Observatory and measure a deficit of surface brightness within their central region after removing detected sources. We simulate the effects of instrumental sensitivity and resolution, the source population, and the lensing effect of the clusters to estimate the shape and amplitude of the deficit. The amplitude of the central deficit is a strong function of the surface density and flux distribution of the background sources. We find that for the current best fitting faint end number counts, and excellent lensing models, the most likely amplitude of the central deficit is the full intensity of the cosmic infrared background (CIB). Our measurement leads to a lower limit to the integrated total intensity of the CIB of I_250 µm > 0.69^(+0.03)_(-0.03) (stat)^(+0.11)_(-0.06)(sys.) MJy sr^(-1), with more CIB possible from both low-redshift sources and from sources within the target clusters. It should be possible to observe this effect in existing high angular resolution data at other wavelengths where the CIB is bright, which would allow tests of models of the faint source component of the CIB.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1088/2041-8205/769/2/L31DOIArticle
http://iopscience.iop.org/2041-8205/769/2/L31PublisherArticle
http://arxiv.org/abs/1303.6725arXivDiscussion Paper
ORCID:
AuthorORCID
Zemcov, M.0000-0001-8253-1451
Cooray, A.0000-0002-3892-0190
Bock, J.0000-0002-5710-5212
Shupe, D. L.0000-0003-4401-0430
Additional Information:© 2013 The American Astronomical Society. Received 2013 April 3; accepted 2013 April 26; published 2013 May 15. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA. SPIRE has been developed by a consortium of institutes led by Cardiff University (UK) and including: University of Lethbridge (Canada); NAOC (China); CEA, LAM (France); IFSI, University of Padua (Italy); IAC (Spain); Stockholm Observatory (Sweden); Imperial College London, RAL, UCLMSSL, UKATC, University of Sussex (UK); Caltech, JPL, NHSC, University of Colorado (USA). This development has been supported by national funding agencies: CSA (Canada); NAOC (China); CEA, CNES, CNRS (France); ASI (Italy); MCINN (Spain); SNSB (Sweden); STFC, UKSA (UK); and NASA (USA). HCSS/HSpot/HIPE are joint developments by the Herschel Science Ground Segment Consortium, consisting of ESA, the NASA Herschel Science Center, and the HIFI, PACS and SPIRE consortia. This work is based in part on archival data obtained with the Spitzer Space Telescope, which is operated by JPL/Caltech under a contract with NASA. Support for this work was provided by NASA.
Funders:
Funding AgencyGrant Number
Canadian Space Agency (CSA)UNSPECIFIED
National Astronomical Observatories, Chinese Academy of Sciences (NAOC)UNSPECIFIED
Commissariat à l’Energie Atomique (CEA)UNSPECIFIED
Centre National d'Études Spatiales (CNES)UNSPECIFIED
Centre National de la Recherche Scientifique (CNRS)UNSPECIFIED
Agenzia Spaziale Italiana (ASI)UNSPECIFIED
Ministerio de Ciencia e Innovación (MCINN)UNSPECIFIED
Swedish National Space Board (SNSB)UNSPECIFIED
Science and Technology Facilities Council (STFC)UNSPECIFIED
United Kingdom Space Agency (UKSA)UNSPECIFIED
NASAUNSPECIFIED
Subject Keywords:cosmic background radiation
Issue or Number:2
Record Number:CaltechAUTHORS:20130709-110259992
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20130709-110259992
Official Citation:HerMES: A Deficit in the Surface Brightness of the Cosmic Infrared Background due to Galaxy Cluster Gravitational Lensing M. Zemcov et al. 2013 ApJ 769 L31
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:39269
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:10 Jul 2013 21:07
Last Modified:03 Oct 2019 05:05

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