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

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00540688" target="_blank" >RIV/68378271:_____/20:00540688 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1088/1475-7516/2020/10/048" target="_blank" >https://doi.org/10.1088/1475-7516/2020/10/048</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1475-7516/2020/10/048" target="_blank" >10.1088/1475-7516/2020/10/048</a>

Result language
angličtina
Original language name
Moving away from the near-horizon attractor of the extreme Kerr force-free magnetosphere
Original language description
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.n
Czech name
—
Czech description
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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

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
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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