1994/09/02 by Arlin P. S. Crotts, Jill Bechtold, Yihu Fang +1 · 2 citations
Engineering · Physics and Astronomy · #Astronomy and Astrophysical Research #Galaxies: Formation, Evolution, Phenomena #Space Technology and Applications #astro-ph
paper · pdf · doi:10.1086/187687
(8 pages, Accepted by Ap. J Letters) 9295
arxiv created 1994/09/02 · openalex publication_date 1994/12/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We present spectra of QSOs Q1343+266A, B, covering Lyβ to C IV emission at 2 A 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^ Msun_ < M < 1012^ Msun_. These results confirm that typical galaxies cause QSO C iv-line absorption.