Journal Article

Advanced three-level approximation for numerical treatment of cosmological recombination

E. E. Kholupenko, A. V. Ivanchik, S. A. Balashev and D. A. Varshalovich

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 417, issue 4, pages 2417-2425
Published in print November 2011 | ISSN: 0035-8711
Published online November 2011 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1111/j.1365-2966.2011.19253.x
Advanced three-level approximation for numerical treatment of cosmological recombination

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A new public numerical code for fast calculations of the cosmological recombination of primordial hydrogen–helium plasma is presented. The code is based on the three-level approximation model of recombination and allows us to take into account some fine physical effects of cosmological recombination simultaneously with using fudge factors. The code can be found at http://www.ioffe.ru/astro/QC/CMBR/atlant/atlant.html.

Keywords: cosmic background radiation

Journal Article.  6806 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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