5 papers · 1 filter
Comments on the manuscript: ``The weak absorbing outflow in AGN Mrk 279: evidence of super-solar metal abundances'' astro-ph/0611578 by Fields et al
Nahum Arav, Jelle Kaastra, Elisa Costantini
A recent manuscript posted on astro-ph (astro-ph/0611578) by Fields et al. (hereafter F06) reports evidence of supersolar metal abundances in Mrk 279 by analyzing its Chandra LETGS…
AGN Outflows: Analysis of the Absorption Troughs
Nahum Arav
With the advent of Chandra and XMM, X-ray lines spectroscopy of AGN outflows is off to an exciting start. In this paper we illuminate some of the complications involved in extracti…
Photoionization Models for BALQSO PG 0946+301
Nahum Arav, Martijn de Kool, Kirk T. Korista
This is a companion paper to the manuscript entitled: ``HST STIS Observations Of PG 0946+301: The Highest Quality UV Spectrum of a BALQSO'' (Arav et al. 2001; accepted for publicat…
PG 0946+301: the Rosetta Stone of BALQSOs?
Nahum Arav
We describe the motivation and features of a multiwavelength spectroscopic campaign on broad absorption line (BAL) QSO PG~0946+301. The main goal of this project is to determine th…
Warm absorbers in Seyfert 1 galaxies
C. S. Reynolds
X-ray spectroscopy of Seyfert 1 galaxies often reveal absorption edges resulting from photoionized gas along the line-of-sight to the central engine, the so-called warm absorber. I…