2.4k citations · 27.3k across the 245 of their papers we have counts for
8 papers · 1 filter
Black hole mass estimate for a sample of radio-loud narrow-line Seyfert 1 galaxies
G. Calderone, G. Ghisellini, M. Colpi +1
We discuss the relationship between a standard Shakura & Sunyaev (1973) accretion disk model and the Big Blue Bump (BBB) observed in Type 1 AGN, and propose a new method to estimat…
On the orientation and magnitude of the black hole spin in galactic nuclei
M. Dotti, M. Colpi, S. Pallini +2
Massive black holes in galactic nuclei vary their mass M and spin vector J due to accretion. In this study we relax, for the first time, the assumption that accretion can be either…
Search of sub-parsec massive binary black holes through line diagnosis II
C. Montuori, M. Dotti, F. Haardt +2
Massive black hole binaries at sub-parsec separations may display in their spectra anomalously small flux ratios between the MgII and CIV broad emission lines, i.e. F_MgII/F_CIV <~…
Adaptive mesh refinement simulations of collisional ring galaxies: effects of the interaction geometry
Davide Fiacconi, Michela Mapelli, Emanuele Ripamonti +1
Collisional ring galaxies are the outcome of nearly axisymmetric high-speed encounters between a disc and an intruder galaxy. We investigate the properties of collisional ring gala…
B2 0954+25A: a typical Fermi blazar or a gamma-loud Narrow Line Seyfert 1
G. Calderone, G. Ghisellini, M. Colpi +1
B2 0954+25A, detected by the {\it Fermi} satellite, is a blazar with interesting observational properties: it has been observed to transit from a jet dominated to a disk dominated…
Low-frequency gravitational-wave science with eLISA/NGO
Pau Amaro-Seoane, Sofiane Aoudia, Stanislav Babak +27
We review the expected science performance of the New Gravitational-Wave Observatory (NGO, a.k.a. eLISA), a mission under study by the European Space Agency for launch in the early…