395 citations · 8.1k across the 171 of their papers we have counts for
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The Closest Damped Lyman Alpha System
Eric D. Miller, Patricia M. Knezek, Joel N. Bregman
A difficulty of studying damped Lyman alpha systems is that they are distant, so one knows little about the interstellar medium of the galaxy. Here we report upon a damped Lyman al…
The Dependence of the Soft X-ray Properties of LMXBs on the Metallicity of Their Environment
Jimmy A. Irwin, Joel N. Bregman
We determine the X-ray spectral properties of a sample of low-mass X-ray binaries (LMXBs) which reside in globular clusters of M31, as well as five LMXBs in Galactic globular clust…
On the Extreme Ultraviolet Emission from Galaxy Clusters
John S. Arabadjis, Joel N. Bregman
An extremely soft X-ray excess throughout galaxy clusters has been claimed as a new feature of these sytems, with important physical implications. We have reexamined this feature i…
Measuring Molecular, Neutral Atomic, and Warm Ionized Galactic Gas Through X-Ray Absorption
John S. Arabadjis, Joel N. Bregman
We study the column densities of neutral atomic, molecular, and warm ionized Galactic gas through their continuous absorption of extragalactic X-ray spectra at |b| > 25 degrees. Fo…
The Identification of Quasars Behind Elliptical Galaxies and Clusters of Galaxies
Patricia M. Knezek, Joel N. Bregman
The detection of resonance absorption lines against known objects such as individual galaxies and clusters of galaxies is a powerful approach for studying the gas content of these…
Far-Infrared Emission From E and E/S0 Galaxies
Joel N. Bregman, Brian A. Snider, Laura Grego +1
Studies of cold material through IRAS 60um and 100um observations indicated that half of ordinary E and E/S0 galaxies were detected above the 3 sigma level, indicating that cold ga…