High-sensitivity X-ray polarimetric observations of black hole X-ray binaries, which will soon become available with the launches of space-borne X-ray observatories with sensitive X-ray polarimeters, will be able to put independent constraints on the black hole as well as the accretion flow, and possibly break degeneracies that cannot be resolved by spectral/timing observations alone. In this work we perform a series of general relativistic Monte-Carlo radiative transfer simulations to study the expected polarization properties of X-ray radiation emerging from lamp-post coronae in black hole X-ray binaries. We find that the polarization degree of the coronal emission of black hole X-ray binaries is sensitive to the spin of the black hole, the height of the corona, and the dynamics of the corona.

Zhang, W., Dov??iak, M., Bursa, M., Karas, V., Matt, G., & Ursini, F. (2022). Investigating the X-ray polarization of lamp-post coronae in BHXRBs. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY [10.1093/mnras/stac1937].

Investigating the X-ray polarization of lamp-post coronae in BHXRBs

Giorgio Matt;Francesco Ursini
2022

Abstract

High-sensitivity X-ray polarimetric observations of black hole X-ray binaries, which will soon become available with the launches of space-borne X-ray observatories with sensitive X-ray polarimeters, will be able to put independent constraints on the black hole as well as the accretion flow, and possibly break degeneracies that cannot be resolved by spectral/timing observations alone. In this work we perform a series of general relativistic Monte-Carlo radiative transfer simulations to study the expected polarization properties of X-ray radiation emerging from lamp-post coronae in black hole X-ray binaries. We find that the polarization degree of the coronal emission of black hole X-ray binaries is sensitive to the spin of the black hole, the height of the corona, and the dynamics of the corona.
Zhang, W., Dov??iak, M., Bursa, M., Karas, V., Matt, G., & Ursini, F. (2022). Investigating the X-ray polarization of lamp-post coronae in BHXRBs. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY [10.1093/mnras/stac1937].
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11590/414968
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