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NGC 1365: A low column density state unveiling a low ionization disk wind
V. Braito, J. N. Reeves, J. Gofford +3
We present the time-resolved spectral analysis of the XMM-Newton data of NGC 1365, collected during one XMM-Newton observation, which caught this "changing-look" AGN in a high flux…
Properties of flat-spectrum radio-loud Narrow-Line Seyfert 1 Galaxies
L. Foschini, M. Berton, A. Caccianiga +27
We have conducted a multiwavelength survey of 42 radio loud narrow-1ine Seyfert 1 galaxies (RLNLS1s), selected by searching among all the known sources of this type and omitting th…
Effective absorbing column density in the gamma-ray burst afterglow X-ray spectra
S. Campana, M. G. Bernardini, V. Braito +9
We investigate the scaling relation between the observed amount of absorption in the X-ray spectra of Gamma Ray Burst (GRB) afterglows and the absorber redshift. Through dedicated…
SDSS J114657.79+403708.6: the third most distant blazar at z=5.0
G. Ghisellini, T. Sbarrato, G. Tagliaferri +5
The radio-loud quasar SDSS J114657.79+403708.6 at a redshift z=5.0 is one of the most distant radio-loud objects. The IR-optical luminosity and spectrum suggest that its black hole…
The puzzling X-ray continuum of the quasar MR 2251-178
E. Nardini, J. N. Reeves, D. Porquet +3
We report on a comprehensive X-ray spectral analysis of the nearby radio-quiet quasar MR 2251-178, based on the long-look (~ 400 ks) XMM-Newton observation carried out in November…
Revealing the location and structure of the accretion disk-wind in PDS456
J. Gofford, J. N. Reeves, V. Braito +7
We present evidence for the rapid variability of the high velocity iron K-shell absorption in the nearby () quasar PDS456. From a recent long Suzaku observation in 2013 ($…