Spectroscopy of the double quasars Q1343+266A, B: The relationship between galaxies and quasi-stellar object C IV absorption lines

Arlin P.S. Crotts, Jill Bechtold, Yihu Fang, Robert C. Duncan

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We present spectra of QSOs Q1343+266A, B, covering Lyβ to C IV emission at 2 Å resolution, and find further evidence that this system is not gravitationally lensed. We see, however, a large number of Lyα and some C IV absorption features common to both spectra. The frequency of C IV lines in common indicates that these absorbers have a radius close to the sight line separation, 39 h-1 kpc (q0 = 0.5), implying a spatial number density of these absorbers the same as current-day L > 0.3 L* galaxies. Furthermore, the velocity mismatch for C IV systems indicates absorber masses in the range 1011 M < M < 1012 M. These results confirm that typical galaxies cause QSO C IV-line absorption.

Original languageEnglish (US)
Pages (from-to)L79-L82
JournalAstrophysical Journal
Issue number2 PART 2
StatePublished - Dec 20 1994



  • Quasars: absorption lines

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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