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15 papers · 2 filters
Polarization transfer in relativistic magnetized plasmas
Jean Heyvaerts, Christophe Pichon, Simon Prunet +1
The polarization transfer coefficients of a relativistic magnetized plasma are derived. These results apply to any momentum distribution function of the particles, isotropic or ani…
Multiwavelength analysis as a probe of accretion and radiative processes in LINERs
George Younes, Delphine Porquet
We study the multiwavelength properties of an optically selected sample of Low Ionization Nuclear Emission-line Regions (LINERs), in an attempt to determine the accretion mechanism…
Chandra-HETGS Observations of the Brightest Flare Seen from Sgr A*
M. A. Nowak, J. Neilsen, S. B. Markoff +10
Starting in 2012, we began an unprecedented observational program focused on the supermassive black hole in the center of our Galaxy, Sgr A*, utilizing the High Energy Transmission…
Modeling optical and UV polarization of AGNs II. Polarization imaging and complex reprocessing
F. Marin, R. W. Goosmann, C. M. Gaskell +2
We model the spectropolarimetric signature resulting from the radiative coupling between the innermost parts of active galactic nuclei (AGNs). We use a new public version of STOKES…
A Suzaku survey of Fe K lines in Seyfert 1 AGN
A. R. Patrick, J. N. Reeves, D. Porquet +3
We construct full broadband models in an analysis of Suzaku observations of nearby Seyfert 1 AGN (z<0.2) with exposures >50ks and with greater than 30000 counts in order to study t…
X-ray polarimetry as a new tool to discriminate reflection from absorption scenarios -- Predictions for MCG-6-30-15
F. Marin, R. W. Goosmann, M. Dovciak +5
We present modelling of X-ray polarisation spectra emerging from the two competing scenarios that are proposed to explain the broad Fe Kα line in the Seyfert 1 galaxy MCG-6-30-15.…