Počet záznamů: 1  

Moving away from the near-horizon attractor of the extreme Kerr force-free magnetosphere

  1. 1.
    0540688 - FZÚ 2021 RIV GB eng J - Článek v odborném periodiku
    Camilloni, R. - Grignani, G. - Harmark, T. - Oliveri, Roberto - Orselli, M.
    Moving away from the near-horizon attractor of the extreme Kerr force-free magnetosphere.
    Journal of Cosmology and Astroparticle Physics. Roč. 2020, č. 10 (2020), s. 1-29, č. článku 048. ISSN 1475-7516. E-ISSN 1475-7516
    Grant CEP: GA MŠMT EF15_003/0000437
    Grant ostatní: OP VVV - CoGraDS(XE) CZ.02.1.01/0.0/0.0/15_003/0000437
    Institucionální podpora: RVO:68378271
    Klíčová slova: black-hole Kerr * symmetry: axial * electromagnetic field * electrodynamics * horizon
    Obor OECD: Particles and field physics
    Impakt faktor: 5.839, rok: 2020
    Způsob publikování: Omezený přístup
    https://doi.org/10.1088/1475-7516/2020/10/048

    We consider force-free magnetospheres around the extreme Kerr black hole. In this case there is no known exact analytic solution to force free electrodynamics which is stationary, axisymmetric and magnetically-dominated. However, any stationary, axisymmetric and regular force-free magnetosphere in extreme Kerr black hole approaches the same attractor solution in the near-horizon extreme Kerr (NHEK) limit with null electromagnetic field. We show that by moving away from the attractor solution in the NHEK region, one finds magnetically-dominated solutions in the extreme Kerr black hole with finite angular momentum outflow. This result is achieved using a perturbative analysis up to the second order.

    Trvalý link: http://hdl.handle.net/11104/0318306

     
     
Počet záznamů: 1  

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