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The dependence of the soft X ray spectral slope with radio property, luminosity, and redshift, for a large sample of AGN from the Einstein IPC data baseThe dependence of the soft X-ray spectral slope on radio, optical and X-ray properties, and on redshift are reported for a large sample of Active Galactic Nuclei (AGN). The sample includes 317 optically and radio-selected AGN from a preliminary version of the Einstein Imaging Proportional Counter (IPC) quasar and AGN data base. The main results are: the difference in X-ray slope between radio-loud and radio-quiet AGN were confirmed for an independent and much larger sample of sources; a difference in X-ray slope between flat and steep radio spectrum AGN is observed only in high luminosity sub-sample; in flat radio spectrum AGNs there is an indication for a dependence of the X-ray spectral index on X-ray luminosity redshift and alpha sub 0x.
Document ID
19900016560
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Brunner, H.
(Tuebingen Univ. (Germany F.R.)., United States)
Worrall, D. M.
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA., United States)
Wilkes, Belinda J.
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA., United States)
Elvis, Martin
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA., United States)
Date Acquired
September 6, 2013
Publication Date
November 1, 1989
Publication Information
Publication: ESA, The 23rd ESLAB Symposium on Two Topics in X Ray Astronomy. Volume 2: AGN and the X Ray Background
Subject Category
Astronomy
Accession Number
90N25876
Funding Number(s)
CONTRACT_GRANT: NAS8-30751
Distribution Limits
Public
Copyright
Other
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