The structure of the absorption spectra of the quasars Q 0420-388 and Q 1101-264

Details The structure of the absorption spectra of the quasars Q 0420-388 and Q 1101-264 The structure of the absorption spectra of the quasars Q 0420-388 and Q 1101-264

Aug 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988azh....65..695c&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 65, July-Aug. 1988, p. 695-701. In Russian.

Astronomy and Astrophysics

Astronomy

Absorption Spectra, Lyman Alpha Radiation, Quasars, H I Regions, Line Spectra, Shock Waves

Scientific paper

The spectra of the quasars Q 0420-388 and Q 1101-264 are studied in the framework of the shock-wave model of the Lyman-alpha forest in the spectra of distant quasars, in which the origin of Lyman-alpha absorption lines is related to absorption zones in the shells of metagalactic shock waves. It is shown that more that 50 percent of the narrow Lyman-alpha abosrption lines are components of doublets, or pairs of nearby lines with the same equivalent widths. This is in good agreement with the predictions of the shock-wave model. The expected H I column density distribution of the Lyman-alpha lines is calculated and is found to be in agreement with the findings of Atwood et al. (1985).

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