Details

Autor(en) / Beteiligte

• Zhang, Wenda
• Dovčiak, Michal
• Bursa, Michal
• Karas, Vladimír
• Matt, Giorgio
• Ursini, Francesco

Titel

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

Ist Teil von

• Monthly notices of the Royal Astronomical Society, 2022-08, Vol.515 (2), p.2882-2889

Erscheinungsjahr

2022

Quelle

EZB-FREE-00999 freely available EZB journals

Beschreibungen/Notizen

• 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.