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Cosmic Feedback from AGN
A. C. Fabian
Accretion onto the massive black hole at the centre of a galaxy can feed energy and momentum into its surroundings via radiation, winds and jets. Feedback due to radiation pressure…
Black hole accretion disks in the canonical low-hard state
R. C. Reis, A. C. Fabian, J. M. Miller
Stellar-mass black holes in the low-hard state may hold clues to jet formation and basic accretion disk physics, but the nature of the accretion flow remains uncertain. A standard…
Relativistic disc reflection in the extreme NLS1 IRAS13224-3809
G. Ponti, L. C. Gallo, A. C. Fabian +7
We present a spectral variability study of the XMM-Newton and Suzaku observations of one of the most extreme Narrow Line Seyfert 1 galaxies, IRAS13224-3809. The X-ray spectrum is c…
The power output of local obscured and unobscured AGN: crossing the absorption barrier with Swift/BAT and IRAS
R. V. Vasudevan, A. C. Fabian, P. Gandhi +2
The Swift/BAT 9-month catalogue of active galactic nuclei (AGN) provides an unbiased census of local supermassive black hole accretion, and probes to all but the highest levels of…
X-ray Spectroscopy of the Core of the Perseus Cluster with Suzaku: Elemental Abundances in the Intracluster Medium
Takayuki Tamura, Y. Maeda, K. Mitsuda +7
The results from Suzaku observations of the central region of the Perseus cluster are presented. Deep exposures with the X-ray Imaging Spectrometer provide high quality X-ray spect…
Energetics of a black hole: constraints on the jet velocity and the nature of the X-ray emitting region in Cyg X-1
Julien Malzac, Renaud Belmont, Andrew C. Fabian
We investigate the energetics of the jet and X-ray corona of Cyg X-1. We show that the current estimates of the jet power obtained from Halpha and [O III] measurements of the optic…