417 citations · 8.4k across the 123 of their papers we have counts for
6 papers · 1 filter
AGN X-ray variability in the XMM-COSMOS survey
G. Lanzuisi, G. Ponti, M. Salvato +18
We took advantage of the observations carried out by XMM in the COSMOS field during 3.5 years, to study the long term variability of a large sample of AGN (638 sources), in a wide…
The incidence of obscuration in active galactic nuclei
A. Merloni, A. Bongiorno, M. Brusa +22
We study the incidence of nuclear obscuration on a complete sample of 1310 AGN selected on the basis of their rest-frame 2-10 keV X-ray flux from the XMM-COSMOS survey, in the reds…
The Mean Star-Forming Properties of QSO Host Galaxies
D. J. Rosario, B. Trakhtenbrot, D. Lutz +22
Quasi-stellar objects (QSOs) occur in galaxies in which supermassive black holes (SMBHs) are growing substantially through rapid accretion of gas. Many popular models of the co-evo…
The Obscured Fraction of AGN in the XMM-COSMOS Survey: A Spectral Energy Distribution Perspective
E. Lusso, J. F. Hennawi, A. Comastri +7
The fraction of AGN luminosity obscured by dust and re-emitted in the mid-IR is critical for understanding AGN evolution, unification, and parsec-scale AGN physics. For unobscured…
The nature of massive black hole binary candidates: I. Spectral properties and evolution
Roberto Decarli, Massimo Dotti, Michele Fumagalli +5
Theoretically, bound binaries of massive black holes are expected as the natural outcome of mergers of massive galaxies. From the observational side, however, massive black hole bi…
A statistical relation between the X-ray spectral index and Eddington ratio of active galactic nuclei in deep surveys
M. Brightman, J. D. Silverman, V. Mainieri +33
We present an investigation into how well the properties of the accretion flow onto a supermassive black hole may be coupled to those of the overlying hot corona. To do so, we spec…