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

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F22%3A00567696" target="_blank" >RIV/67985815:_____/22:00567696 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1142/9789811258251_0016" target="_blank" >http://dx.doi.org/10.1142/9789811258251_0016</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1142/9789811258251_0016" target="_blank" >10.1142/9789811258251_0016</a>

Result language
angličtina
Original language name
Polarimetry and strong gravity effects from spots orbiting near a black hole
Original language description
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. We further explore this scheme for the observed flares from the supermassive black hole in the context of Galactic center (Sgr A*). Our code simulates the lightcurves for a wide range of parameters. The energy dependence of the changing degree and angle of polarization should allow us to discriminate between the cases of a rotating and a non-rotating black hole.
Czech name
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Czech description
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Project
<a href="/en/project/LTI17018" target="_blank" >LTI17018: Promotion and Development of International Scientific Cooperation in Relativistic Astrophysics and Preparation of X-ray Space Missions</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
The Fifteenth Marcel Grossmann Meeting: On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics, and Relativistic Field Theories
ISBN
978-981-125-825-1
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
220-224
Publisher name
World Scientific
Place of publication
Singapore
Event location
Rome
Event date
Jul 1, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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