Growth of orbital resonances around a black hole surrounded by matter

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F23%3A00581797" target="_blank" >RIV/67985815:_____/23:00581797 - isvavai.cz</a>
Result on the web
<a href="https://proceedings.physics.cz/wp-content/uploads/2024/01/RAGtime25_online_final.pdf" target="_blank" >https://proceedings.physics.cz/wp-content/uploads/2024/01/RAGtime25_online_final.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Growth of orbital resonances around a black hole surrounded by matter
Original language description
This work studies the dynamics of geodesic motion within a curved spacetime around a Schwarzschild black hole, perturbed by a gravitational field of a far axisymmetric distribution of mass enclosing the system. This spacetime can serve as a versatile model for a diverse range of astrophysical scenarios and, in particular, for extreme mass ratio inspirals as in our work. We show that the system is non-integrable by employing Poincaré surface of section and rotation numbers. By utilising the rotation numbers, the widths of resonances are calculated, which are then used in establishing the relation between the underlying perturbation parameter driving the system from integrability and the quadrupole parameter characterising the perturbed metric. This relation allows us to estimate the phase shift caused by the resonance during an inspiral.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of RAGtime 23/25: Workshops on black holes and neutron stars
ISBN
978-80-7510-577-6
ISSN
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e-ISSN
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Number of pages
11
Pages from-to
29-39
Publisher name
Silesian University
Place of publication
Opava
Event location
Opava
Event date
Nov 27, 2023
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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