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Observers in Kerr spacetimes: the ergoregion on the equatorial plane

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F18%3AA0000276" target="_blank" >RIV/47813059:19240/18:A0000276 - isvavai.cz</a>

  • Result on the web

    <a href="https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-018-5569-7" target="_blank" >https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-018-5569-7</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1140/epjc/s10052-018-5569-7" target="_blank" >10.1140/epjc/s10052-018-5569-7</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Observers in Kerr spacetimes: the ergoregion on the equatorial plane

  • Original language description

    We perform a detailed analysis of the properties of stationary observers located on the equatorial plane of the ergosphere in aKerr spacetime, including light-surfaces. This study highlights crucial differences between black hole and the super-spinner sources. In the case of Kerr naked singularities, the results allow us to distinguish between 'weak' and 'strong' singularities, corresponding to spin values close to or distant from the limiting case of extreme black holes, respectively. We derive important limiting angular frequencies for naked singularities. We especially study very weak singularities as resulting from the spin variation of black holes. We also explore the main properties of zero angular momentum observers for different classes of black hole and naked singularity spacetimes.

  • Czech name

  • Czech description

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/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)

Others

  • Publication year

    2018

  • 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

    78

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    20

  • Pages from-to

    „69-1“-„69-20“

  • UT code for WoS article

    000428516500001

  • EID of the result in the Scopus database

    2-s2.0-85041113097