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arXiv · 1901.06515

Polarimetry and strong gravity effects from spots orbiting near a black hole

Vladimir Karas·Michal Dovciak·Jiri Svoboda·Wenda Zhang·Giorgio Matt·Andreas Eckart·Michal Zajacek
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Abstract

We study the modulation of the observed radiation flux and the associated changes in the polarization degree and angle that are predicted by the orbiting spot model for flares from accreting black holes. The geometric shape of the emission region influences the resulting model lightcurves, namely, the emission region of a spiral shape can be distinguished from a simpler geometry of a small orbiting spot.

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Vladimir Karas, Michal Dovciak, Jiri Svoboda, Wenda Zhang, Giorgio Matt, Andreas Eckart, Michal Zajacek. 2019-01-19. Polarimetry and strong gravity effects from spots orbiting near a black hole. https://doi.org/10.1142/9789811258251_0016

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