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The quasar PG 0844+349 in an X-ray weak state
L. C. Gallo, D. Grupe, N. Schartel +4
In March 2009 the well-studied quasar, PG 0844+349, was discovered with Swift to be in an X-ray weak state. A follow-up XMM-Newton observation several weeks later generated a good…
The X-ray spectral signatures from the complex circumnuclear regions in the Compton thick AGN NGC 424
A. Marinucci, S. Bianchi, G. Matt +4
We present the XMM-Newton RGS and EPIC pn spectra of a long (\simeq 100 ks) observation of one of the soft X-ray brightest Compton-thick Seyfert 2 galaxies, NGC 424. As a first ste…
Multi-epoch X-ray observations of the Seyfert 1.2 galaxy Mrk 79: bulk motion of the illuminating X-ray source
L. C. Gallo, G. Miniutti, J. M. Miller +4
Multi-epoch X-ray spectroscopy (0.3-25 keV) of the Seyfert 1.2 galaxy Mrk 79 (UGC 3973) spanning nearly eight years and a factor of three in broadband flux are analysed. The data a…
FERO: Finding Extreme Relativistic Objects. I. Statistics of Relativistic Fe Kalpha lines in Radio-Quiet Type 1 AGN
I. de la Calle Pérez, A. L. Longinotti, M. Guainazzi +10
Accretion models predict that fluorescence lines broadened by relativistic effects should arise from reflection of X-ray emission onto the inner region of the accretion disc surrou…
A bright off-nuclear X-ray source: A bright off-nuclear X-ray source: a type IIn supernova, a bright ULX or a recoiling super-massive black hole in CXO J122518.6+144545
P. G. Jonker, M. A. P. Torres, A. C. Fabian +3
In this Paper we report the discovery of CXO J122518.6+144545; a peculiar X-ray source with a position 3.6+-0.2",off-nuclear from an SDSS DR7 z=0.0447 galaxy. The 3.6" offset corre…
Spectral Energy Distribution of Hyper-Luminous Infrared Galaxies
A. Ruiz, G. Miniutti, F. Panessa +1
The relationship between star formation and super-massive black hole growth is central to our understanding of galaxy formation and evolution. Hyper-Luminous Infrared Galaxies (HLI…