The XBS sample of type 1 AGNs: Radio loudness vs. physical parameters

2009/09/23 by A. Caccianiga, Caccianiga, A., P. Severgnini +7
Physics and Astronomy · #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #astro-ph.CO

paper · pdf · doi:10.48550/arxiv.0909.4165

2 pages, 2 figures, to appear on the proceedings of the conference "Accretion and Ejection in AGN: A Global View", June 22-26 2009 - Como, Italy

arxiv created 2009/09/23 · arxiv updated 2009/12/01

Abstract

We have studied the relationship between the AGN radio-loudness and the mass of the central black-hole by using the ~190 type 1 AGN selected in the XMM-Newton Bright Survey (XBS). We find that radio-loud AGNs are much more frequent at high black-hole masses being a factor ~10 times more common for masses >10⁹ Msun when compared to masses between 10⁷-10⁹ Msun.

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