Astronomy and Astrophysics – Astrophysics – Cosmology and Extragalactic Astrophysics
Scientific paper
2009-09-23
Astronomy and Astrophysics
Astrophysics
Cosmology and Extragalactic Astrophysics
2 pages, 2 figures, to appear on the proceedings of the conference "Accretion and Ejection in AGN: A Global View", June 22-26
Scientific paper
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 >10^9 Msun when compared to masses between 10^7-10^9 Msun.
Caccianiga Alessandro
Ceca Roberto Della
Corral Alvaro
Marchese Elena
Severgnini Paola
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