2 papers
astro-ph2001
SHEEP: the ASCA 5-10 keV survey
I. Georgantopoulos, K. Nandra, A. Ptak
We present the first results of the hard (5-10 keV) ASCA GIS survey SHEEP (Search for the High Energy Extragalactic Population). We have analysed 149 fields covering an area of 39…
astro-ph1999
X-ray dependencies on luminosity in AGN
K. Nandra
Several X-ray properties of active galactic nuclei depend, or appear to depend, on their luminosity. It has long been suggested that alpha o-x, the X-ray ``loudness'' decreases wit…