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The Spatial, Ionization, and Kinematic Conditions of the z=1.39 Damped Ly-alpha Absorber in Q0957+561 A,B
Chris Churchill, Rick Mellon, Jane Charlton +1
We examined the sizes of the absorption clouds in a z=1.3911 damped Ly-alpha absorber (DLA) in the double image lensed quasar Q0957+561 A,B (separation 135 pc at the absorber redsh…
The Physical Conditions of Intermediate Redshift MgII Absorbing Clouds from Voigt Profile Analysis
Chris Churchill, Steven Vogt, Jane Charlton
[Slightly Abridged] We present a detailed statistical analysis of the column densities, N, and Doppler parameters, b, of MgII absorbing clouds at redshifts 0.4<z<1.2. We use the HI…
The ASCA X-Ray Spectrum of Arp 102B and Evaluation of Simple Models for Its Associated, Metastable Fe II Absorber
M. Eracleous, J. P. Halpern, J. C. Charlton
We have observed the broad-line radio galaxy Arp 102B with ASCA in order to determine the absorbing column density towards its X-ray source and measure its X-ray spectrum. The ulti…
The Beginning of the End: Hubble Space Telescope Images of Seyfert's Sextet
C. Palma, S. Zonak, S. Hunsberger +4
Hubble Space Telescope Wide Field Planetary Camera 2 images of Hickson Compact Group 79, Seyfert's Sextet, are presented. Both point sources and extended sources detected on the th…
Studying the Gaseous Phases of Galaxies with Background QSOs
Jane C. Charlton
High resolution rest frame UV quasar absorption spectra covering low and high ionization species, as well as the Lyman series lines, provide remarkably detailed information about t…