The absorption lines in the spectra of high redshift QSOs

Details The absorption lines in the spectra of high redshift QSOs The absorption lines in the spectra of high redshift QSOs

Sep 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981acaps...1...89c&link_type=abstract

(Acta Astrophysica Sinica, vol. 1, no. 2, 1981, p. 89-96.) Chinese Astronomy and Astrophysics, vol. 5, Sept. 1981, p. 337-341. A

Physics

Optics

Absorption Spectra, Hydrogen Clouds, Interstellar Extinction, Quasars, Red Shift, Autocorrelation, Cassegrain Optics, Gas Spectroscopy, Line Spectra

Scientific paper

The absorption lines in the spectra of high redshift quasi-stellar objects are investigated, and preliminary results on four quasars obtained using IPCS on the RGO Cassegrain spectrograph are presented. Autocorrelation peaks at L-alpha/L-beta and L-alpha/L-gamma in PKS 0805+046 and PKS 1442+101 indicate that the large number of absorption lines shortward of L-alpha in high redshift quasars are due to absorption by hydrogen clouds. The distribution of absorption lines and the correlation function of L-alpha/L-beta indicate that PKS 0528-250 may be an exception. Absorption redshift systems containing metallic lines may be produced by either matter ejected from the quasar, an associated galaxy cluster, or an intervening galaxy.

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