Schwarzschild binary supported by an Appell ring
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F19%3A10408367" target="_blank" >RIV/00216208:11320/19:10408367 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=UpvX4~rx2N" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=UpvX4~rx2N</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.99.064050" target="_blank" >10.1103/PhysRevD.99.064050</a>
Alternative languages
Result language
angličtina
Original language name
Schwarzschild binary supported by an Appell ring
Original language description
We continue to study black holes subjected to strong sources of gravity, again paying special attention to the behavior of geometry in the black-hole interior. After examining, in two previous papers, the deformation arising in the Majumdar-Papapetrou binary of extremally charged black holes and that of a Schwarzschild black hole due to a surrounding (Bach-Weyl) ring, we consider here the system of two Schwarzschild-type black holes held apart by the Appell ring. After verifying that such a configuration can be in a strut-free equilibrium along certain lines in a parameter space, we compute several basic geometric characteristics of the equilibrium configurations. Then, like in previous papers, we calculate and visualize simple invariants determined by the metric (lapse or, equivalently, potential), by its first derivatives (gravitational acceleration), and by its second derivatives (Kretschmann scalar). Extension into the black-hole interior is achieved along particular null geodesics starting tangentially to the horizon. In contrast to the case involving the Bach-Weyl ring, here each single black hole is placed asymmetrically with respect to the equatorial plane (given by the Appell ring), and the interior geometry is really deformed in a nonsymmetrical way. Inside the black holes, we again find regions of the negative Kretschmann scalar in some cases.
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
10300 - Physical sciences
Result continuities
Project
<a href="/en/project/GB14-37086G" target="_blank" >GB14-37086G: Albert Einstein Center for Gravitation and Astrophysics</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
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
—
Volume of the periodical
99
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
19
Pages from-to
064050
UT code for WoS article
000462919200005
EID of the result in the Scopus database
2-s2.0-85064036138