2 papers
astro-ph2006
Optical Variability of the Three Brightest Nearby Quasars
C. Martin Gaskell, Andrew J. Benker, Jeffrey S. Campbell +9
We report on the relative optical variability of the three brightest nearby quasars, 3C 273, PDS 456, and PHL 1811. All three have comparable absolute magnitudes, but PDS 456 and P…
astro-ph2005
Seyfert Galaxies and the Hard X-ray Background: Artificial Chandra Observations of z = 0.3 Active Galaxies
K. C. Peterson, S. C. Gallagher, A. E. Hornschemeier +2
Deep X-ray surveys have resolved much of the X-ray background radiation below 2 keV into discrete sources, but the background above 8 keV remains largely unresolved. The obscured (…