Quasinormal ringing of general spherically symmetric parametrized black holes
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19630%2F22%3AA0000185" target="_blank" >RIV/47813059:19630/22:A0000185 - isvavai.cz</a>
Result on the web
<a href="https://journals.aps.org/prd/abstract/10.1103/PhysRevD.105.104032" target="_blank" >https://journals.aps.org/prd/abstract/10.1103/PhysRevD.105.104032</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.105.104032" target="_blank" >10.1103/PhysRevD.105.104032</a>
Alternative languages
Result language
angličtina
Original language name
Quasinormal ringing of general spherically symmetric parametrized black holes
Original language description
The general parametrization of spherically symmetric and asymptotically flat black hole spacetimes in arbitrary metric theories of gravity was suggested in Rezzolla and Zhidenko [Phys. Rev. D 90, 084009 (2014)]. The parametrization is based on the continued fraction expansion in terms of the compact radial coordinate and has superior convergence and a strict hierarchy of parameters. It is known that some observable quantities, related to particle motion around the black hole, such as the eikonal-quasinormal modes, radius of the shadow, frequency at the innermost stable circular orbit, and others, depend mostly on only a few of the lowest coefficients of the parametrization. Here we continue this approach by studying the dominant (low-lying) quasinormal modes for such generally parametrized black holes. We show that, due to the hierarchy of parameters, the dominant quasinormal frequencies are also well determined by only the first few coefficients of the expansion for the so-called moderate black hole geometries. The latter are characterized by a relatively slow change of the metric functions in the radiation zone near the black hole. The nonmoderate metrics, which change strongly between the event horizon and the innermost stable circular orbit, are usually characterized by echoes or by the distinctive (from the Einstein case) quasinormal ringing which does not match the current observational data. Therefore, the compact description of a black hole spacetime in terms of the truncated general parametrization is an effective formalism for testing strong gravity and imposing constraints on allowed black hole geometries.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
<a href="/en/project/GA19-03950S" target="_blank" >GA19-03950S: Testing strong gravity via black holes</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review D
ISSN
2470-0010
e-ISSN
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Volume of the periodical
105
Issue of the periodical within the volume
10
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
„104032-1“-„104032-10“
UT code for WoS article
000809432200008
EID of the result in the Scopus database
2-s2.0-85131335726