271 citations · 863 across the 12 of their papers we have counts for
5 papers · 2 filters
Highly Ionized High-Velocity Clouds toward PKS 2155-304 and Markarian 509
J. A. Collins, J. M. Shull, M. L. Giroux
To gain insight into four highly ionized high-velocity clouds (HVCs) discovered by Sembach et al. (1999), we have analyzed data from the Hubble Space Telescope (HST) and Far Ultrav…
A Study of the Reionization History of Intergalactic Helium with FUSE and VLT
W. Zheng, G. A. Kriss, J. -M. Deharveng +8
We obtained high-resolution VLT and FUSE spectra of the quasar HE2347-4342 to study the properties of the intergalactic medium between redshifts z=2.0-2.9. The high-quality optical…
The Deuterium-to-Hydrogen Ratio in a Low-Metallicity Cloud Falling onto the Milky Way
K. R. Sembach, B. P. Wakker, T. M. Tripp +13
Using Far Ultraviolet Spectroscopic Explorer and Hubble Space Telescope observations of the QSO PG1259+593, we detect D I Lyman-series absorption in high velocity cloud Complex C,…
The Fluctuating Intergalactic Radiation Field at Redshifts z = 2.3-2.9 from He II and H I Absorption towards HE 2347-4342
J. Michael Shull, Jason Tumlinson, Mark L. Giroux +2
We provide an in-depth analysis of the He II and H I absorption in the intergalactic medium (IGM) at redshifts z = 2.3-2.9 toward HE 2347-4342, using spectra from the Far Ultraviol…
The Multiphase Intergalactic Medium towards PKS 2155-304
J. Michael Shull, Jason Tumlinson, Mark Giroux
We study the cluster of H I and O VI absorption systems and the claimed detection of O VIII absorption from the intergalactic medium at z ~ 0.0567, associated with a group of galax…