Astronomy and Astrophysics – Astrophysics
Scientific paper
2000-06-02
Astrophys.J. 543 (2000) 552-576; Erratum-ibid. 592 (2003) 1263-1263
Astronomy and Astrophysics
Astrophysics
46 pages, including 15 figures and 9 tables, to appear in ApJ
Scientific paper
10.1086/317138
We have completed spectroscopic observations using LRIS on the Keck 1 telescope of 30 very high redshift quasars, 11 selected for the presence of damped Ly-alpha absorption systems and 19 with redshifts z > 3.5 not previously surveyed for absorption systems. We have surveyed an additional 10 QSOs with the Lick 120'' and the Anglo-Australian Telescope. We have combined these with previous data resulting in a statistical sample of 646 QSOs and 85 damped Ly-alpha absorbers with column densities N(HI) >= 2 x 10^20 atoms/cm^2 covering the redshift range 0.008 <= z <= 4.694. To make the data in our statistical sample more readily available for comparison with scenarios from various cosmological models, we provide tables that includes all 646 QSOs from our new survey and previously published surveys. They list the minimum and maximum redshift defining the redshift path along each line of sight, the QSO emission redshift, and when an absorber is detected, the absorption redshift and measured HI column density. [see the paper for the complete abstract]
Storrie-Lombardi Lisa J.
Wolfe Arthur M.
No associations
LandOfFree
Surveys for z > 3 Damped Lyman-alpha Absorption Systems does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Surveys for z > 3 Damped Lyman-alpha Absorption Systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surveys for z > 3 Damped Lyman-alpha Absorption Systems will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-410366