Hydrogen Absorption Lines in the Cosmic Microwave Background Spectrum

Details Hydrogen Absorption Lines in the Cosmic Microwave Background Spectrum Hydrogen Absorption Lines in the Cosmic Microwave Background Spectrum

Aug 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004astl...30..509d&link_type=abstract

Astronomy Letters, vol. 30, p. 509-513 (2004)

Astronomy and Astrophysics

Astronomy

10

Scientific paper

We have calculated the intensities of the subordinate hydrogen lines formed during the recombination epoch at redshifts 800 < z < 1600. We show that an allowance for the angular momentum splitting of hydrogen atomic energy levels and the dipole transition selection rules can reveal absorption features in the cosmic microwave background recombination spectrum in the submillimeter wavelength range.

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