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Highly Ionized Warm Absorbers in AGNs: Simulations with the IXO Calorimeter
F. Tombesi, M. Cappi, T. Yaqoob +2
We have performed several simulations in order to test the scientific capabilities of the IXO calorimeter, with particular emphasis on the detection of absorption lines in the 3-11…
On the efficiency of production of the Fe Kalpha emission line in neutral matter
T. Yaqoob, K. D. Murphy, L. Miller +1
The absolute luminosity of the Fe Kalpha emission line from matter illuminated by X-rays in astrophysical sources is nontrivial to calculate except when the line-emitting medium is…
On the Prospect of Constraining Black-Hole Spin Through X-ray Spectroscopy of Hotspots
K. D. Murphy, T. Yaqoob, M. Dovčiak +1
Future X-ray instrumentation is expected to allow us to significantly improve the constraints derivedfrom the Fe K lines in AGN, such as the black-hole angular momentum (spin) and…
X-ray evidence for a mildly relativistic and variable outflow in the luminous Seyfert 1 galaxy Mrk509
M. Cappi, F. Tombesi, S. Bianchi +9
There is growing evidence for the presence of blueshifted Fe K absorption lines in a number of radio-quiet AGNs and QSOs. These may be fundamental to probe flow dynamics near super…
An X-ray Spectral Model for Compton-Thick Toroidal Reprocessors
K. D. Murphy, T. Yaqoob
The central engines of both type 1 and type 2 AGNs are thought to harbor a toroidal structure that absorbs and reprocesses high-energy photons from the central X-ray source. If the…
A Suzaku observation of the ULIRG IRAS19254-7245: disclosing the AGN component
V. Braito, J. N. Reeves, R. Della Ceca +3
We discuss here a long Suzaku observation of IRAS 19254-7245 (also known as the Superantennae), one of the brightest and well studied Ultra Luminous Infrared Galaxies in the local…