Astronomy Letters

, Volume 32, Issue 12, pp 795–803

Two-photon 2s ↔ 1s transitions during hydrogen recombination in the universe

  • E. E. Kholupenko
  • A. V. Ivanchik

DOI: 10.1134/S1063773706120012

Cite this article as:
Kholupenko, E.E. & Ivanchik, A.V. Astron. Lett. (2006) 32: 795. doi:10.1134/S1063773706120012


Based on the standard cosmological model, we calculate the correction to the rate of two-photon 2s ↔ 1s transitions in the hydrogen atom under primordial hydrogen plasma recombination conditions that arises when the induced transitions under equilibrium background radiation with a blackbody spectrum and plasma recombination radiation are taken into account.

Key words

cosmology recombination primordial plasma cosmic microwave background radiation CMBR anisotropy two-photon decay 

PACS numbers

98.80.-k 98.80.Cq 

Copyright information

© Pleiades Publishing, Inc. 2006

Authors and Affiliations

  • E. E. Kholupenko
    • 1
  • A. V. Ivanchik
    • 1
  1. 1.Ioffe Physicotechnical InstituteSt. PetersburgRussia

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