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A New Method for Measuring the Hi Gunn-Peterson Effect at High Redshift
Yihu Fang, Arlin Crotts
In order to carry out a systematic and thorough measurement of the HI Gunn-Peterson effect at high redshift, a quantitatively testable and repeatable procedure, in particular, a ro…
Spectroscopy of the Double Quasars Q1343+264 Ab: II. the Relationship between Galaxies Ans QSO C~IV Absorption Lines -
Arlin P. S. Crotts, Jill Bechtold, Yihu Fang +1
We present spectra of QSOs 1343+266 A B, covering Ly-beta to C~IV emission at 2Å~resolution, and find further evidence that this system is not gravitationally lensed. We see, howev…
Spectroscopy of the Double Quasars Q1343+266AB: I. a New Determination of the Size of Lyman-Alpha Forest Absorbers
Jill Bechtold, Arlin P. S. Crotts, Robert C. Duncan +1
We have obtained spectroscopy of Q 1343+266 AB, a pair of quasars at redshift z = 2.03 with a projected separation of 9.5 arcseconds. This system is well-suited for probing the Ly-…