The absorption line profiles in Q1101-264

Details The absorption line profiles in Q1101-264 The absorption line profiles in Q1101-264

Mar 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...278..486c&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 278, March 15, 1984, p. 486-498. Research supported by the Science and Engi

Astronomy and Astrophysics

Astrophysics

132

Absorption Spectra, Astronomical Spectroscopy, Quasars, High Resolution, Lyman Alpha Radiation, Red Shift

Scientific paper

Three regions of the spectrum of the bright quasar Q1101-264 have been observed with a resolution of 0.25 Å at the Anglo-Australian Telescope. An absorption redshift system at zabs = 1.8387, previously reported as being single, is found to contain at least five components with a total velocity spread of 160 km s-1. A new Mg II complex also is present at zabs = 0.3564 and 0.3591 with pairs of components separated by 24 and 40 km s-1, respectively, and a total range of 630 km s-1. The profiles of the numerous Lyα lines are almost invariably resolved with velocity dispersion parameters generally in the range 10 - 45 km s-1.

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