Analytic expressions for grey-body factors of the general parametrized spherically symmetric black holes
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19630%2F25%3AA0000432" target="_blank" >RIV/47813059:19630/25:A0000432 - isvavai.cz</a>
Result on the web
<a href="https://iopscience.iop.org/article/10.1209/0295-5075/adbc17/pdf?utm_source=clarivate&getft_integrator=clarivate" target="_blank" >https://iopscience.iop.org/article/10.1209/0295-5075/adbc17/pdf?utm_source=clarivate&getft_integrator=clarivate</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1209/0295-5075/adbc17" target="_blank" >10.1209/0295-5075/adbc17</a>
Alternative languages
Result language
angličtina
Original language name
Analytic expressions for grey-body factors of the general parametrized spherically symmetric black holes
Original language description
light of the recently discovered connection between grey-body factors and quasi normal ringing, we derive analytic expressions for the grey-body factors of generic parametrized spherically symmetric and asymptotically flat black holes. These expressions are presented as expansions in terms of the inverse multipole number and the coefficients of the parametrization. The obtained analytic formulas serve as good approximations whenever the deviation from the Schwarzschild geometry is not very large. We demonstrate that the primary parameter determining the grey-body factors is the deviation of the event horizon radius from its Schwarzschild value, while the higher-order coefficients of the parametrization, which govern the near-horizon geometry, are much less significant. This finding is consistent with recent observations that grey-body factors are considerably more stable against small deformations of the near-horizon geometry than quasinormal modes.
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
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
EPL
ISSN
0295-5075
e-ISSN
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Volume of the periodical
149
Issue of the periodical within the volume
6
Country of publishing house
GB - UNITED KINGDOM
Number of pages
7
Pages from-to
„69004-1“-„69004-7“
UT code for WoS article
001482973300001
EID of the result in the Scopus database
2-s2.0-105002752730