Lyman line pumping and the modelling of H II regions

Details Lyman line pumping and the modelling of H II regions Lyman line pumping and the modelling of H II regions

Feb 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...156..393h&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 156, no. 1-2, Feb. 1986, p. 393, 394.

Astronomy and Astrophysics

Astronomy

2

Astronomical Models, H Ii Regions, Interstellar Masers, Lyman Spectra, Radio Sources (Astronomy), Recombination Reactions, Electron Density (Concentration), Pumping

Scientific paper

The author shows that Lyman line pumping (Hoang-Binh, 1983) reduces the maser action in radio recombination lines emitted by H II regions. This effect is equivalent to an increase of the electron density Ne without increasing the electron impact broadening. In the modelling of H II regions by means of radio line data, the variation of the parameter Ne could be significantly influenced by this pump mechanism.

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