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The contribution of the first stars to the cosmic infrared background

Santos, Michael R. and Bromm, Volker and Kamionkowski, Marc (2002) The contribution of the first stars to the cosmic infrared background. Monthly Notices of the Royal Astronomical Society, 336 (4). pp. 1082-1092. ISSN 0035-8711.

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We calculate the contribution to the cosmic infrared background from very massive metal-free stars at high redshift. We explore two plausible star formation models and two limiting cases for the reprocessing of the ionizing stellar emission. We find that Population III stars may contribute significantly to the cosmic near-infrared background if the following conditions are met. (i) The first stars were massive, with M≳ 100 M⊙. (ii) Molecular hydrogen can cool baryons in low-mass haloes. (iii) Population III star formation is ongoing, and not shut off through negative feedback effects. (iv) Virialized haloes form stars at ∼40 per cent efficiency up to the redshift of reionization, z∼ 7. (v) The escape fraction of the ionizing radiation into the intergalactic medium is small. (vi) Nearly all of the stars end up in massive black holes without contributing to the metal enrichment of the Universe.

Item Type:Article
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URLURL TypeDescription Paper
Kamionkowski, Marc0000-0001-7018-2055
Additional Information:© 2002 RAS. Received: 19 June 2002. Accepted: 10 July 2002. Published: 11 November 2002. VB thanks the TAPIR group at Caltech for its hospitality during the completion of this work. We thank L. Cambrésy, W. T. Reach, Y. Lithwick, A. Benson, J. Silk, A. Ferrara, M. Rees and P. Natarajan for stimulating discussions. We thank the anonymous referee for comments that improved the presentation of this paper. MRS acknowledges the support of NASA GSRP grant NGT5-50339. This work was supported in part at Caltech by NSF AST-0096023, NASA NAG5-8506 and DoE DE-FG03-92-ER40701 and DE-FG03-88-ER40397.
Funding AgencyGrant Number
NASA Graduate Student Research FellowshipNGT5-50339
Department of Energy (DOE)DE-FG03-92-ER40701
Department of Energy (DOE)DE-FG03-88-ER40397
Subject Keywords:stars: formation, galaxies: formation, cosmology: theory, diffuse radiation, early Universe, infrared: general
Issue or Number:4
Record Number:CaltechAUTHORS:20200602-124838918
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Official Citation:Michael R. Santos, Volker Bromm, Marc Kamionkowski, The contribution of the first stars to the cosmic infrared background, Monthly Notices of the Royal Astronomical Society, Volume 336, Issue 4, November 2002, Pages 1082–1092,
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:103643
Deposited By: Rebecca Minjarez
Deposited On:03 Jun 2020 19:56
Last Modified:03 Jun 2020 19:56

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