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Force-free magnetosphere attractors for near-horizon extreme and near-extreme limits of Kerr black hole

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00554705" target="_blank" >RIV/68378271:_____/21:00554705 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.1088/1361-6382/abdf70" target="_blank" >https://doi.org/10.1088/1361-6382/abdf70</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1088/1361-6382/abdf70" target="_blank" >10.1088/1361-6382/abdf70</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Force-free magnetosphere attractors for near-horizon extreme and near-extreme limits of Kerr black hole

  • Original language description

    We propose a new approach to find magnetically-dominated force-free (FF) magnetospheres around highly spinning black holes, relevant for models of astrophysical jets. Employing the near-horizon extreme Kerr (NHEK) limit of the Kerr black hole, any stationary, axisymmetric and regular FF magnetosphere reduces to the same attractor solution in the NHEK limit with null electromagnetic field strength. We use this attractor solution as the universal starting point for perturbing away from the NHEK region in the extreme Kerr spacetime. We demonstrate that by going to second order in perturbation theory, it is possible to find magnetically dominated magnetospheres around the extreme Kerr black hole. Furthermore, we consider the near-horizon near-extreme Kerr (near-NHEK) limit that provides access to a different regime of highly spinning black holes. Also in this case we find a novel FF attractor, which can be used as the universal starting point for a perturbative construction of FF magnetospheres.

  • 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

    10303 - Particles and field physics

Result continuities

  • Project

    <a href="/en/project/EF15_003%2F0000437" target="_blank" >EF15_003/0000437: Cosmology, Gravity and the Dark Sector of the Universe</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

    Classical and Quantum Gravity

  • ISSN

    0264-9381

  • e-ISSN

    1361-6382

  • Volume of the periodical

    38

  • Issue of the periodical within the volume

    7

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    11

  • Pages from-to

    075022

  • UT code for WoS article

    000629542400001

  • EID of the result in the Scopus database

    2-s2.0-85103769405