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X-Ray Polarimetry Workshop SLAC, Stanford, California 9-11 February 2004 |
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Polarization Effects Near Black Holes
Avery
Broderick
Caltech
aeb@tapir.caltech.edu
Avery Broderick
Both general and special relativistic effects can significantly alter the polarimetric properties of the innermost regions of black hole accretion disks. These can be loosely separated into those which effect the polarization directly (e.g. polarization propagation through a curved spacetime and rotation of the position angle due to Lorentz boosts from the disk) and those which alter the portion of the emitting region that is viewed (e.g. gravitational lensing and the Doppler boosting of the disk.) Typically, these depolarize the emission from the innermost regions, and in particular the X-ray emission. I will describe the mechanisms and typical effects for a simple model in which the polarization is due to electron scattering. Then I will briefly review the literature in which more detailed disk models were employed.
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For more information, contact
Jennifer Formichelli |
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