Splitting of absorption lines in 3C 191

Details Splitting of absorption lines in 3C 191 Splitting of absorption lines in 3C 191

Dec 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975apj...202..296w&link_type=abstract

Astrophysical Journal, vol. 202, Dec. 1, 1975, pt. 1, p. 296-302.

Astronomy and Astrophysics

Astrophysics

59

Absorption Spectra, Line Spectra, Quasars, Red Shift, Carbon, Fine Structure, Mathematical Models, Photoionization, Radiation Pressure, Wave Excitation

Scientific paper

Spectroscopic observations of the quasar 3C 191 have been made at a higher dispersion than in previous studies in an attempt to detect absorption from the excited fine-structure level of the ground state of C II. It was found that the previously studied absorption system is split into two systems which show apparent line-locking on the C IV 1550-A doublet. Both systems show a similar and wide range of ionization. The results are interpreted in terms of a multiple-cloud model which is photoionized by a central source, and possible implications for the ionization structure in QSOs as a whole are discussed.

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