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Radio-Quite Red Quasars
Dong-Woo Kim, Martin Elvis
We have performed a successful targetted search for a population of red radio-quiet, and probably absorbed, quasars. Radio-quiet, optically-red ROSAT PSPC X-ray sources brighter th…
The U.S. ISO Key Project on Quasars
Eric Hooper, Belinda Wilkes, Kim McLeod +5
Observations for the U.S. key project on quasars using ISO were completed in April when the satellite's cryogen supply expired. This proceeding presents an update of the project, i…
The Equilibrium Photoionized Absorber in 3C351
F. Nicastro, F. Fiore, M. Elvis +1
We present two ROSAT PSPC observations of the radio-loud, lobe-dominated quasar 3C 351, which shows an `ionized absorber' in its X-ray spectrum. The factor 1.7 change in flux in th…
Ionized Absorbers in AGN: the Role of Collisional Ionization and Time-Evolving Photoionization
F. Nicastro, F. Fiore, G. C. Perola +1
In this paper we explore collisional ionization and time-evolving photoionization in the, X-ray discovered, ionized absorbers in Seyfert galaxies. These absorbers show temporal cha…
NGC 7582: The Prototype Narrow-Line X-ray Galaxy
Jonathan F. Schachter, Fabrizio Fiore, Martin Elvis +5
NGC 7582 is a candidate prototype of the Narrow Line X-ray Galaxies (NLXGs) found in deep X-ray surveys. An ASCA observation shows the hard (> 3 keV) X-ray continuum of NGC 7582 dr…