395 citations · 1.8k across the 50 of their papers we have counts for
7 papers · 1 filter
A deep X-ray view of the bare AGN Ark 120. VI. Geometry of the hot corona from spectroscopic and polarization signatures
A. Marinucci, D. Porquet, F. Tamborra +9
The spectral shape of the hard X-ray continuum of Active Galactic Nuclei (AGN) can be ascribed to inverse Compton scattering of optical/UV seed photons from the accretion disc by a…
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…
A rapid occultation event in NGC 3227
T. J. Turner, J. N. Reeves, V. Braito +3
NGC 3227 exhibits rapid flux and spectral variability in the X-ray band. To understand this behaviour we conducted a co-ordinated observing campaign using 320 ks of XMM-Newton expo…
An ultra-fast inflow in the luminous Seyfert PG1211+143
Ken Pounds, Chris Nixon, Andrew Lobban +1
Blueshifted absorption lines in the X-ray spectra of AGN show that ultra-fast outflows with typical velocities are a common feature of these luminous objects. Such po…
A new relativistic component of the accretion disk wind in PDS 456
James Reeves, Valentina Braito, Emanuele Nardini +3
Past X-ray observations of the nearby luminous quasar PDS 456 (at ) have revealed a wide angle accretion disk wind (Nardini et al. 2015), with an outflow velocity of $\sim…
X-ray time lags in PG 1211+143
Andrew Lobban, Simon Vaughan, Ken Pounds +1
We investigate the X-ray time lags of a recent ~630ks XMM-Newton observation of PG 1211+143. We find well-correlated variations across the XMM-Newton EPIC bandpass, with the first…