573 citations · 8k across the 106 of their papers we have counts for
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astro-ph2004★ 22 cited
The Kast Ground Based UV Spectral Survey of 79 QSOs at Redshift 2 for Lyman Alpha Forest and Metal Absorption
David Tytler, John M. O'Meara, Nao Suzuki +3
We present a moderate resolution (~1.15 Angstroms/pixel) survey of 79 quasars obtained using the Kast spectrograph on the Shane 3m telescope at Lick observatory. The spectra span t…
astro-ph2004★ 93 cited
Cosmological parameters sigma_8, the baryon density, and the UV background intensity from a calibrated measurement of H I Lyman-alpha absorption at z = 1.9
David Tytler, David Kirkman, John M. O'Meara +7
We identify a concordant model for the intergalactic medium (IGM) at redshift z=1.9 that uses popular values for cosmological and astrophysical parameters and accounts for all bary…