8–13 Sept 2019
Europe/Rome timezone
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Polarimetry of GRS 1915+105 in thermal state with the future IXPE mission

13 Sept 2019, 20:12
2m

Speaker

Romana Mikušincová (Astronomical Institute of the Czech Academy of Sciences | Institute of Theoretical Physics of the Charles University)

Description

I will summarize our recent results on X-ray polarization simulations
for the X-ray binary GRS 1915+105 in thermal state with the aim
to assess the capability of the future X-ray polarimetry measurements
to put independent constraints on black hole spin and orientation of the system.
For this purpose, we simulate X-ray polarimetric properties of GRS 1915+105
for the planned Imaging X-ray Polarimetry Explorer (IXPE) satellite.
For the simulations, we employ our recently developed KYNBB code to calculate
the Stokes parameters using a multicolor black body emission model
accounting for thermal radiation from the disk accretion (Dovčiak et al., 2008).
We will present our results of the fitting analysis of the simulated data to show
the precision of constraints on black hole spin and orientation for different
exposures of the planned observation.

Affiliation Astronomical Institute of the Czech Academy of Sciences | Institute of Theoretical Physics of the Charles University
Topic Future missions

Primary author

Romana Mikušincová (Astronomical Institute of the Czech Academy of Sciences | Institute of Theoretical Physics of the Charles University)

Co-authors

Jiří Svoboda Dr Michal Dovciak (Astronomical Institute, Czech Academy of Sciences) Niccolo Di Lalla (INFN | University of Pisa)

Presentation materials