SPECTROSCOPY OF THE DOUBLE QUASARS Q1343- THE RELATIONSHIP BETWEEN GALAXIES AND QUASI-STELLAR OBJECT C-IV ABSORPTION-LINES(266A, Q1343+266B)

We present spectra of QSOs Q1343 + 266A, B, covering Ly beta to C IV e mission at 2 Angstrom resolution, and find further evidence that this system is not gravitationally lensed. We see, however, a large number of Ly alpha and some C IV absorption features common to both spectra. The frequency of C IV lines in common indicates that these absorbers h ave a radius close to the sight line separation, 39 h(-1) kpc (q(0) = 0.5), implying a spatial number density of these absorbers the same as current-day L > 0.3 L(not equal) galaxies. Furthermore, the velocity mismatch for C IV systems indicates absorber masses in the range 10(11 ) M(.) < M < 10(12) M These results confirm that typical galaxies caus e QSO C IV-line absorption.