131 citations · 2.2k across the 90 of their papers we have counts for
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Implications of an updated ultraviolet background for the ionization mechanisms of intervening Ne VIII absorbers
Tanvir Hussain, Vikram Khaire, Raghunathan Srianand +2
Ne VIII absorbers seen in QSO spectra are useful tracers of warm ionized gas, when collisional ionization is the dominant ionization process. While photoionization by the ultraviol…
The Highly Ionized Circumgalactic Medium is Kinematically Uniform Around Galaxies
Nikole M. Nielsen, Glenn G. Kacprzak, Sowgat Muzahid +3
The circumgalactic medium (CGM) traced by OVI doublet absorption has been found to concentrate along the projected major and minor axes of the host galaxies. This su…
An HST/COS legacy survey of high-velocity ultraviolet absorption in the Milky Way's circumgalactic medium and the Local Group
P. Richter, S. E. Nuza, A. J. Fox +9
To characterize the absorption properties of this circumgalactic medium (CGM) and its relation to the LG we present the so-far largest survey of metal absorption in Galactic high-v…
The Extreme Ultraviolet Variability of Quasars
Brian Punsly, Paola Marziani, Shaohua Zhang +2
We study the extreme ultraviolet (EUV) variability (rest frame wavelengths 500 - 920 ) of high luminosity quasars using HST (low to intermediate redshift sample) and SDSS (high…
A Pair of O VI and Broad Ly-alpha Absorbers Probing Warm Gas in a Galaxy Group Environment at z ~ 0.4
Sachin Pachat, Anand Narayanan, Sowgat Muzahid +4
We report on the detection of two O VI absorbers separated in velocity by 710 km/s at z ~ 0.4 towards the background quasar SBS0957+599. Both absorbers are multiphase systems traci…
Molecular Hydrogen Absorption from the Halo of a z ~ 0.4 Galaxy
Sowgat Muzahid, Glenn G. Kacprzak, Jane C. Charlton +1
Lyman- and Werner-band absorption of molecular hydrogen (H) is detected in 50% of low redshift () DLAs/sub-DLAs with (H) > 10 cm. However the…