On the Nature of the Sources of the Cosmic Infrared Background | Zendy

A. Kashlinsky | Zendy; Richard G. Arendt | Zendy; John Mather | Zendy; S. H. Moseley | Zendy

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On the Nature of the Sources of the Cosmic Infrared Background

Author(s) -

A. Kashlinsky,

Richard G. Arendt,

John Mather,

S. H. Moseley

Publication year - 2006

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/510484

Subject(s) - cosmic infrared background , physics , astrophysics , cosmology , cosmic cancer database , sky , astronomy , infrared , population , planck , cosmic microwave background , anisotropy , optics , demography , sociology

We discuss interpretation of the cosmic infrared background (CIB)anisotropies detected by us recently in the Spitzer IRAC based measurements.The fluctuations are approximately isotropic on the sky consistent with theircosmological origin. They remain after removal of fairly faint interveningsources and must arise from a population which has a strong CIB clusteringcomponent with only a small shot-noise level. We discuss the constraints thedata place on the luminosities, epochs and mass-to-light ratios of theindvidual sources producing them. Assuming the concordance LambdaCDM cosmologythe measurements imply that the luminous sources producing them lie at cosmictimes < 1 Gyr and were individually much brighter per unit mass than thepresent stellar populations.Comment: Ap.J.Letters, in pres

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