activity
20032021
most citedSwift data hint at a binary Super Massive Black Hole candidate at sub-parsec separation

33 citations · 104 across the 7 of their papers we have counts for

collaborators

7 papers

astro-ph.GA2021★ 11 cited

X-ray obscuration from a variable ionized absorber in PG 1114+445

R. Serafinelli, V. Braito, P. Severgnini +9

Photoionized absorbers of outflowing gas are commonly found in the X-ray spectra of active galactic nuclei (AGN). While most of these absorbers are seldom significantly variable, s…

astro-ph.GA2019★ 21 cited

Testing the blast-wave AGN feedback scenario in MCG-03-58-007

Mattia Sirressi, Claudia Cicone, Paola Severgnini +7

We report the first Atacama large millimeter/submillimeter array observations of MCG-03-58-007, a local (, this work) AGN ()…

astro-ph.HE2018★ 20 cited

Evidence for a clumpy disc-wind in the star forming Seyfert\,2 galaxy MCG--03--58--007

G. A. Matzeu, V. Braito, J. N. Reeves +9

We report the results of a detailed analysis of a deep simultaneous \textit{XMM-Newton & NuSTAR} observation of the nearby () and bright ($L_{\rm bol}\sim3\…

astro-ph.HE2018★ 17 cited

Resolving the X-ray obscuration in a low flux observation of the quasar PDS 456

James Reeves, Valentina Braito, Emanuele Nardini +5

Simultaneous XMM-Newton, NuSTAR and HST observations, performed in March 2017, of the nearby () luminous quasar PDS 456 are presented. PDS 456 had a low X-ray flux compare…

astro-ph.HE2018★ 33 cited

Swift data hint at a binary Super Massive Black Hole candidate at sub-parsec separation

P. Severgnini, C. Cicone, R. Della Ceca +10

Dual/binary Supermassive Black Hole (SMBH) systems are the inevitable consequence of the current Lambda Cold Dark Matter cosmological paradigm. In this context, we discuss here the…

astro-ph.HE2015★ 2 cited

Mining the XRT archive to probe the X-ray absorber structure in the AGN population

L. Ballo, P. Severgnini, A. Moretti +6

One of the key ingredients of the Unified Model of Active Galactic Nuclei (AGN) is the presence of a torus-like optically thick medium composed by dust and gas around the putative…