On black hole surface gravity
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19630%2F23%3AA0000307" target="_blank" >RIV/47813059:19630/23:A0000307 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1140/epjc/s10052-023-11345-w" target="_blank" >https://link.springer.com/article/10.1140/epjc/s10052-023-11345-w</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-023-11345-w" target="_blank" >10.1140/epjc/s10052-023-11345-w</a>
Alternative languages
Result language
angličtina
Original language name
On black hole surface gravity
Original language description
We analyze the properties of the black hole surface gravity by using an alternative approach based upon the use of light surfaces that are represented by certain characteristic frequencies. To this end, we rewrite the Kerr line element in terms of the characteristic frequencies, which allows us to obtain copies of the Kerr geometries (black hole-clusters) as the parameters vary. In particular, we replace the spin parameter a = J/M with the corresponding characteristic frequencies so that the line element describes only black holes. This new representation is particularly adapted to analyze how the surface gravity behaves as the black hole passes from one v state to another. It turns out that the spins a = v3/2M and a = 1/v 2 M for black holes and a/M = v9/8 for naked singularities are of particular relevance for the analysis of the surface gravity properties.
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
European Physical Journal C
ISSN
1434-6044
e-ISSN
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Volume of the periodical
83
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
42
Pages from-to
„370-1“-„370-42“
UT code for WoS article
000988975200002
EID of the result in the Scopus database
2-s2.0-85158824335