Shell structure of pancakes and the absorption spectra of quasars

Details Shell structure of pancakes and the absorption spectra of quasars Shell structure of pancakes and the absorption spectra of quasars

Nov 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987afz....26..431v&link_type=abstract

(Astrofizika, vol. 26, May-June 1987, p. 431-442) Astrophysics (ISSN 0571-7132), vol. 26, no. 3, Nov. 1987, p. 260-267. Translat

Astronomy and Astrophysics

Astrophysics

Absorption Spectra, Quasars, Spectral Line Width, Stellar Envelopes, Stellar Models, Gravitational Collapse, Heavy Elements, Hydrogen Atoms, Shock Fronts

Scientific paper

The formation of the absorption lines of atomic hydrogen in the spectra of distant quasars is studied. A model is presented which describes the formation of shells of a 'pancake' formed in the adiabatic picture of the generation of the large-scale structure of the universe. It is found that the absorption lines can form 'doublets'. The equivalent widths of the corresponding lines are calculated and the physical conditions corresponding to the observed heavy-element absorption spectra are discussed.

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