15 citations · 42 across the 5 of their papers we have counts for
5 papers
Toward measuring the spin of obscured supermassive black holes: a critical assessment with disk megamasers
Alberto Masini, Annalisa Celotti, Samuele Campitiello
Mass and spin are two fundamental properties of astrophysical black holes. While some established, indirect methods are adopted to measure both these properties of active galactic…
The disk-torus system in active galactic nuclei: possible evidence of highly spinning black holes
Samuele Campitiello, Annalisa Celotti, Gabriele Ghisellini +1
We study the ratio between the luminosity of the torus and that of the accretion disk, inferred from the relativistic model KERRBB for a sample of approximately 2000 luminosity…
Estimating black hole masses: Accretion disk fitting versus reverberation mapping and single epoch
Samuele Campitiello, Annalisa Celotti, Gabriele Ghisellini +1
We selected a sample of 28 Type 1 AGNs for which a black hole mass has been inferred using the reverberation mapping technique and single epoch scaling relations. All 28 sources sh…
A NuSTAR view of powerful gamma-ray loud blazars
G. Ghisellini, M. L. Perri, G. Costamante +6
We observed with the NuSTAR satellite 3 blazars at z>2, detected in gamma-rays by Fermi/LAT and in the soft X-rays, but not yet observed above 10 keV. The flux and slope of their X…
Black hole mass and spin estimates of the most distant quasars
Samuele Campitiello, Annalisa Celotti, Gabriele Ghisellini +1
We investigate the properties of the most distant quasars ULASJ134208.10+092838.61 (), ULASJ112001.48+064124.3 () and DELSJ003836.10-152723.6 () study…