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The lively accretion disc in NGC 2992. III. Tentative evidence of rapid Ultra Fast Outflow variability
Alfredo Luminari, Andrea Marinucci, Stefano Bianchi +8
We report on the 2019 XMM-Newton+NuSTAR monitoring campaign of the Seyfert galaxy NGC 2992, observed at one of its highest flux levels in the X-rays. The time-averaged spectra of t…
Transient obscuration event captured in NGC 3227 IV. Origin of the obscuring cloud variability
S. Grafton-Waters, J. Mao, M. Mehdipour +13
Obscuration events in type I active galactic nuclei (AGN) have been detected more frequently in recent years. The strong flux decrease in the soft X-ray band between observations h…
Uncovering the geometry of the hot X-ray corona in the Seyfert galaxy NGC4151 with IXPE
V. E. Gianolli, D. E. Kim, S. Bianchi +106
We present an X-ray spectro-polarimetric analysis of the bright Seyfert galaxy NGC4151. The source has been observed with the Imaging X-ray Polarimetry Explorer (IXPE) for 700 ks,…
Probing the circumnuclear absorbing medium of the buried AGN in NGC 1068 through NuSTAR observations
A. Zaino, S. Bianchi, A. Marinucci +9
We present the results of the latest NuSTAR monitoring campaign of the Compton-thick Seyfert 2 galaxy NGC 1068, composed of four 50 ks observations performed between July 201…
A receding torus model for the Iwasawa-Taniguchi effect for Compton-thick AGN
Giorgio Matt, Kazushi Iwasawa
Recently, Boorman et al. (2018) reported on the discovery of the Iwasawa-Taniguchi (I-T) effect (a.k.a. X-ray Baldwin effect) for Compton-thick AGN. They measured a decrease of the…
A NuSTAR census of coronal parameters in Seyfert galaxies
A. Tortosa, S. Bianchi, A. Marinucci +2
We discuss the results on the hot corona parameters of Active Galactic Nuclei that have been recently measured with NuSTAR. The values taken from the literature of a sample of nine…
The NuSTAR view of the true Type 2 Seyfert NGC3147
Stefano Bianchi, Andrea Marinucci, Giorgio Matt +6
We present the first NuSTAR observation of a 'true' Type 2 Seyfert galaxy. The 3-40 keV X-ray spectrum of NGC3147 is characterised by a simple power-law, with a standard Γ~1.7 and…
NGC 1068: No change in the mid-IR torus structure despite X-ray variability
N. López-Gonzaga, D. Asmus, F. E. Bauer +5
Context. Recent NuSTAR observations revealed a somewhat unexpected increase in the X-ray flux of the nucleus of NGC 1068. We expect the infrared emission of the dusty torus to reac…
3C 273 with NuSTAR: Unveiling the AGN
Kristin K. Madsen, Felix Fürst, Dominic J. Walton +17
We present results from a 244\,ks \textit{NuSTAR} observation of 3C\,273 obtained during a cross-calibration campaign with the \textit{Chandra}, \textit{INTEGRAL}, \textit{Suzaku},…
Anatomy of the AGN in NGC 5548: II. The Spatial, Temporal and Physical Nature of the Outflow from HST/COS Observations
N. Arav, C. Chamberlain, G. A. Kriss +30
(Abridged) Our deep multiwavelength campaign on NGC 5548 revealed an unusually strong X-ray obscuration. The resulting dramatic decrease in incident ionizing flux allowed us to con…
Simultaneous X-ray and optical observations of true Type 2 Seyfert galaxies
Stefano Bianchi, Francesca Panessa, Xavier Barcons +9
We present the results of a campaign of simultaneous X-ray and optical observations of `true' Type 2 Seyfert galaxies candidates, i.e. AGN without a Broad Line Region (BLR). Out of…
The broad-band X-ray spectrum of the Seyfert 1 galaxy, MCG+8-11-11
Stefano Bianchi, Ilaria De Angelis, Giorgio Matt +5
We present a long (100 ks) Suzaku observation of one of the X-ray brightest AGN, MCG+8-11-11. These data were complemented with the 54-month Swift BAT spectrum, allowing us to perf…
High resolution X-ray spectroscopy and imaging of Mrk573
Stefano Bianchi, Marco Chiaberge, Daniel A. Evans +4
We present a detailed analysis of the XMM-Newton RGS high resolution X-ray spectra of the Seyfert 2 galaxy, Mrk573. This analysis is complemented by the study of the Chandra image,…
The soft X-ray polarization in obscured AGN
Stefano Bianchi, Giorgio Matt, Francesco Tamborra +3
The soft X-ray emission in obscured active galactic nuclei (AGN) is dominated by emission lines, produced in a gas photoionized by the nuclear continuum and likely spatially coinci…
CAIXA: a Catalogue of AGN In the XMM-Newton Archive II. Multiwavelength correlations
Stefano Bianchi, Nuria Fonseca Bonilla, Matteo Guainazzi +2
We presented CAIXA, a Catalogue of AGN in the XMM-Newton Archive, in a companion paper. Here, a systematic search for correlations between the X-ray spectral properties and the mul…
CAIXA: a Catalogue of AGN In the XMM-Newton Archive - Correlations
Stefano Bianchi, Nuria Fonseca Bonilla, Matteo Guainazzi +2
We presented CAIXA, a Catalogue of AGN in the XMM-Newton Archive, in Bianchi et al. (2009). It consists of all the radio-quiet X-ray unobscured (N cm$^{…
How complex is the obscuration in AGN? New clues from the Suzaku monitoring of the X-ray absorbers in NGC7582
Stefano Bianchi, Enrico Piconcelli, Marco Chiaberge +3
We present the results of a Suzaku monitoring campaign of the Seyfert 2 galaxy, NGC7582. The source is characterized by very rapid (on timescales even lower than a day) changes of…