Disclosing connections between black holes and naked singularities: horizon remnants, Killing throats and bottlenecks
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F19%3AA0000435" target="_blank" >RIV/47813059:19240/19:A0000435 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-019-6725-4" target="_blank" >https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-019-6725-4</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-019-6725-4" target="_blank" >10.1140/epjc/s10052-019-6725-4</a>
Alternative languages
Result language
angličtina
Original language name
Disclosing connections between black holes and naked singularities: horizon remnants, Killing throats and bottlenecks
Original language description
We study the properties of black holes and naked singularities by considering stationary observers and light surfaces in Kerr spacetimes. We reconsider the notion of Killing horizons from a special perspective by exploring the entire family of Kerr metrics. To this end, we introduce the concepts of extended plane, Killing throats and bottlenecks for weak (slowly spinning) naked singularities. Killing bottlenecks (or horizon remnants in analogy with the corresponding definition of throats in black holes) are restrictions of the Killing throats appearing in special classes of slowly spinning naked singularities. Killing bottlenecks appear in association with the concept of pre-horizon regime introduced in de Felice (Mon Not R Astron Soc 252:197-202, 1991) and de Felice and Usseglio-Tomasset (Class Quantum Gravity 8:1871-1880, 1991). In the extended plane of the Kerr spacetime, we introduce particular sets, metric bundles, of metric tensors which allow us to reinterpret the concept of horizon and to find connections between black holes and naked singularities throughout the horizons. To evaluate the effects of frame-dragging on the formation and structure of Killing bottlenecks and horizons in the extended plane, we consider also the Kerr-Newman and the Reissner-Norström spacetimes. We argue that these results might be significant for the comprehension of processes that lead to the formation and eventually destruction of Killing horizons.
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
<a href="/en/project/GJ16-03564Y" target="_blank" >GJ16-03564Y: Accretion configurations in strong gravity combined with electromagnetic field</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
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
European Physical Journal C
ISSN
1434-6044
e-ISSN
1434-6052
Volume of the periodical
79
Issue of the periodical within the volume
3
Country of publishing house
DE - GERMANY
Number of pages
31
Pages from-to
„209-1“-„209-31“
UT code for WoS article
000460674700007
EID of the result in the Scopus database
2-s2.0-85062886814