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Tracing baryons in the warm-hot intergalactic medium with broad Ly alpha absorption
Philipp Richter, Blair Savage, Ken Sembach +1
We discuss physical properties and baryonic content of broad Ly alpha absorbers (BLAs) at low redshift. These absorption systems, recently discovered in high-resolution, high-signa…
Properties of O VI Absorption in the Local Interstellar Medium
Blair D. Savage, Nicholas Lehner
We report on the properties of LISM O VI absorption observed with 20 km/s resolution FUSE observations of 39 white dwarfs (WDs) ranging in distance from 37 to 230 pc with a median…
Measurement of Noisy Absorption Lines using the Apparent Optical Depth Technique
Andrew J. Fox, Blair D. Savage, Bart P. Wakker
To measure the column densities of interstellar and intergalactic gas clouds using absorption line spectroscopy, the apparent optical depth technique (AOD) of Savage & Sembach (199…
Multi-phase High-Velocity Clouds toward HE 0226-4110 and PG 0953+414
Andrew J. Fox, Bart P. Wakker, Blair D. Savage +3
We study the physical conditions, elemental abundances, and kinematics of the high-velocity clouds (HVCs) along the sight lines toward active galaxies HE0226-4110 and PG0953+414 us…
Detection of Ne VIII in the Low-Redshift Warm-Hot IGM
Blair D. Savage, Nicolas Lehner, Bart P. Wakker +2
High resolution FUSE and STIS observations of the bright QSO HE 0226-4110 (zem = 0.495) reveal the presence of a multi-phase absorption line system at zabs(O VI) = 0.20701 containi…