77 citations · 190 across the 5 of their papers we have counts for
6 papers · 1 filter
Emergence of a Quasar Outflow
F. Hamann, K. F. Kaplan, P. Rodriguez Hidalgo +2
We report the first discovery of the emergence of a high-velocity broad-line outflow in a luminous quasar, J105400.40+034801.2 at redshift z ~ 2.1. The outflow is evident in ultrav…
The Orbital Distribution of Satellite Galaxies
Stéphane Herbert-Fort, Dennis Zaritsky, Yeun Jin Kim +2
We measure the distribution of velocities for prograde and retrograde satellite galaxies using a combination of published data and new observations for 78 satellites of 63 extremel…
The SDSS-DR5 Survey for Proximate Damped Lya Systems
Jason X. Prochaska, Joseph F. Hennawi, Stephane Herbert-Fort
Using the Sloan Digital Sky Survey, Data Release 5, we survey proximate damped Lya systems (PDLAs): absorption line systems with HI column density N(HI)> 2x10^20 cm^{-2} at velocit…
The Metal-Strong Damped Lyman-alpha Systems
Stéphane Herbert-Fort, Jason X. Prochaska, Miroslava Dessauges-Zavadsky +4
We have identified a metal-strong (logN(Zn+) > 13.15 or logN(Si+) > 15.95) DLA (MSDLA) population from an automated quasar (QSO) absorber search in the Sloan Digital Sky Survey Dat…
The SDSS Damped Lya Survey: Data Release 3
Jason X. Prochaska, Stephane Herbert-Fort, Arthur M. Wolfe
We present the results from a damped Lya survey of the Sloan Digital Sky Survey, Data Release 3 based on over 500 new damped Lya systems at z>2.2. We measure the HI column density…
Highly ionized absorbers at high redshift
Jacqueline Bergeron, Stéphane Herbert-Fort
We investigate the existence of a metal-rich OVI population in 10 high spectral resolution quasar spectra and define observational criteria for this class of absorbers. The low tem…