Shadows of parametrized axially symmetric black holes allowing for separation of variables
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19630%2F21%3AA0000118" target="_blank" >RIV/47813059:19630/21:A0000118 - isvavai.cz</a>
Result on the web
<a href="https://journals.aps.org/prd/abstract/10.1103/PhysRevD.103.104033" target="_blank" >https://journals.aps.org/prd/abstract/10.1103/PhysRevD.103.104033</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.103.104033" target="_blank" >10.1103/PhysRevD.103.104033</a>
Alternative languages
Result language
angličtina
Original language name
Shadows of parametrized axially symmetric black holes allowing for separation of variables
Original language description
Metric of axially symmetric asymptotically flat black holes in an arbitrary metric theory of gravity can be represented in the general form which depends on infinite number of parameters. We constrain this general class of metrics by requiring the existence of additional symmetries, which lead to the separation of variables in the Hamilton-Jacobi and Klein-Gordon equations, and show that once the metric functions change sufficiently moderately in some region near the black hole, the black-hole shadow depends on a few deformation parameters only. We analyze the influence of these parameters on the black-hole shadow. We also show that the shadow of the rotating black hole in the Einstein-dilaton-Gauss-Bonnet theory is well approximated if the terms violating the separation of variables are neglected in the metric.
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
—
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)
Others
Publication year
2021
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
2470-0029
Volume of the periodical
103
Issue of the periodical within the volume
10
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
„104033-1“-„104033-10“
UT code for WoS article
000655876200009
EID of the result in the Scopus database
2-s2.0-85106443222