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The Contribution of Galaxies to the 3.4 μm Cosmic Infrared Background as Measured Using WISE
Lake,S. E.1,2,3; Wright,E. L.3; Assef,R. J.4; Jarrett,T. H.5; Petty,S.6; Stanford,S. A.7,8; Tsai,C.-W.1,2,3
2019-12-19
Source PublicationThe Astrophysical Journal
ISSN0004-637X
Volume887Issue:2
AbstractAbstract The study of the extragalactic background light (EBL) in the optical and near-infrared has received a lot of attention in the last decade, especially near the wavelength λ?≈?3.4 μm, with remaining tension among different techniques for estimating the background. In this paper we present a measurement of the contribution of galaxies to the EBL at 3.4 μm that is based on the measurement of the luminosity function (LF) in Lake et al. and the mean spectral energy distribution of galaxies in Lake & Wright. The mean and standard deviation of our most reliable Bayesian posterior chain gives a 3.4 μm background of Iν?=?9.0?±?0.5 kJy sr?1 (νIν = 8.0 ± 0.4 nW m?2 sr?1 e-fold?1), with systematic uncertainties unlikely to be greater than 2 kJy sr?1. This result is higher than most previous efforts to measure the contribution of galaxies to the 3.4 μm EBL, but is consistent with the upper limits placed by blazars and the most recent direct measurements of the total 3.4 μm EBL.
KeywordExtragalactic astronomy Cosmic background radiation Galaxy evolution Infrared galaxies Infrared sources
DOI10.3847/1538-4357/ab5289
Language英语
WOS IDIOP:0004-637X-887-2-ab5289
PublisherThe American Astronomical Society
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Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/28680
Collection中国科学院国家天文台
Affiliation1.National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100012, People’s Republic of China; lake@nao.cas.cn
2.CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, People’s Republic of China
3.Physics and Astronomy Department, University of California, Los Angeles, CA 90095-1547, USA
4.Núcleo de Astronomía de la Facultad de Ingeniería, Universidad Diego Portales, Av. Ejèrcito 441, Santiago, Chile
5.Astronomy Department, University of Cape Town, Private Bag X3, Rondebosch, 7701, Republic of South Africa
6.NorthWest Research Associates, 4118 148th Avenue, NE Redmond, WA 98052-5164, USA
7.Institute of Geophysics and Planetary Physics, Lawrence Livermore National Laboratory, Livermore CA 94551, USA
8.Department of Physics, University of California, Davis, CA 95616, USA
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Lake,S. E.,Wright,E. L.,Assef,R. J.,et al. The Contribution of Galaxies to the 3.4 μm Cosmic Infrared Background as Measured Using WISE[J]. The Astrophysical Journal,2019,887(2).
APA Lake,S. E..,Wright,E. L..,Assef,R. J..,Jarrett,T. H..,Petty,S..,...&Tsai,C.-W..(2019).The Contribution of Galaxies to the 3.4 μm Cosmic Infrared Background as Measured Using WISE.The Astrophysical Journal,887(2).
MLA Lake,S. E.,et al."The Contribution of Galaxies to the 3.4 μm Cosmic Infrared Background as Measured Using WISE".The Astrophysical Journal 887.2(2019).
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