Free-bound emission from cosmological hydrogen recombination

J. Chluba, R. A. Sunyaev

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    In this paper we compute the emission coming from the direct recombination of free electrons to a given shell (n>=2) during the epoch of cosmological hydrogen recombination. This contribution leads to a total of one photon per recombined hydrogen atom and therefore a ~30-88% increase of the recombination spectrum within the frequency range 1 GHznunu
    Original languageUndefined
    JournalAstronomy & Astrophysics
    Publication statusPublished - 4 Aug 2006


    • astro-ph

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