Journal Article

The ultraviolet extragalactic background light: dust extinction and the evolution of the cosmic star formation rate from <i>z</i> = 0 to ∼0.6

J.-M. Deharveng, V. Buat and B. Milliard

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 346, issue 1, pages 63-66
Published in print November 2003 | ISSN: 0035-8711
Published online November 2003 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1046/j.1365-2966.2003.07058.x
The ultraviolet extragalactic background light: dust extinction and the evolution of the cosmic star formation rate from z = 0 to ∼0.6

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Abstract

We show that the accumulated light of galaxies in the ultraviolet can be evaluated from their luminosity density as a function of the evolution of the cosmic star formation rate and dust extinction properties. Constraints on the evolution rate are expected in future. Data available at the moment are consistent with an evolution rate at low z steeper than (1 +z)3.5. A shallower rate remains possible if the luminosity-weighted dust extinction at 2000 Å, as suggested by some data, is lower than ∼1.2.

Keywords: dust, extinction; galaxies: evolution; diffuse radiation; ultraviolet: galaxies

Journal Article.  2850 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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