The sound of the event horizon
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19630%2F23%3AA0000284" target="_blank" >RIV/47813059:19630/23:A0000284 - isvavai.cz</a>
Result on the web
<a href="https://www.worldscientific.com/doi/10.1142/S0218271823420142" target="_blank" >https://www.worldscientific.com/doi/10.1142/S0218271823420142</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1142/S0218271823420142" target="_blank" >10.1142/S0218271823420142</a>
Alternative languages
Result language
angličtina
Original language name
The sound of the event horizon
Original language description
During the ringdown phase of a gravitational signal emitted by a black hole, the least damped quasinormal frequency dominates. If modifications to Einstein's theory induce noticeable deformations of the black-hole geometry only near the event horizon, the fundamental mode remains largely unaffected. However, even a small change near the event horizon can significantly impact the first few overtones, providing a means to probe the geometry of the event horizon. Overtones are stable against small deformations of spacetime at a distance from the black hole, allowing the event horizon to be distinguished from the surrounding environment. In contrast to echoes, overtones make a much larger energy contribution. These findings open up new avenues for future observations.
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
International Journal of Modern Physics D
ISSN
0218-2718
e-ISSN
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Volume of the periodical
32
Issue of the periodical within the volume
14
Country of publishing house
SG - SINGAPORE
Number of pages
5
Pages from-to
„2342014-1“-„2342014-5“
UT code for WoS article
001039221500003
EID of the result in the Scopus database
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