Analytic expressions for quasinormal modes and grey-body factors in the eikonal limit and beyond
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19630%2F23%3AA0000289" target="_blank" >RIV/47813059:19630/23:A0000289 - isvavai.cz</a>
Result on the web
<a href="https://iopscience.iop.org/article/10.1088/1361-6382/ad0a52" target="_blank" >https://iopscience.iop.org/article/10.1088/1361-6382/ad0a52</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1361-6382/ad0a52" target="_blank" >10.1088/1361-6382/ad0a52</a>
Alternative languages
Result language
angličtina
Original language name
Analytic expressions for quasinormal modes and grey-body factors in the eikonal limit and beyond
Original language description
Although the WKB series converges only asymptotically and guarantees the exact result solely in the eikonal regime, we have managed to derive concise analytical expressions for the quasinormal modes and grey-body factors of black holes, expanding beyond the eikonal approximation. Remarkably, these expressions demonstrate unexpectedly strong accuracy. We suggest a comprehensive approach for deriving analytical expressions for grey-body factors and quasinormal modes at various orders beyond the eikonal approximation. Two cases are examined as examples: the Schwarzschild-de Sitter black hole and hairy black holes within the framework of Effective Field Theory. We have publicly shared a generic code that calculates analytical expressions for grey-body factors and quasinormal modes of spherical black holes.
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
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Classical and Quantum Gravity
ISSN
0264-9381
e-ISSN
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Volume of the periodical
40
Issue of the periodical within the volume
24
Country of publishing house
GB - UNITED KINGDOM
Number of pages
16
Pages from-to
„245005-1“-„245005-16“
UT code for WoS article
001121137400001
EID of the result in the Scopus database
2-s2.0-85177765697