Kerr Black Hole in a Uniform Bertotti-Robinson Magnetic Field: An Exact Solution

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10509506" target="_blank" >RIV/00216208:11320/25:10509506 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=MYFan0vG8W" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=MYFan0vG8W</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/rfgv-ybz5" target="_blank" >10.1103/rfgv-ybz5</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Kerr Black Hole in a Uniform Bertotti-Robinson Magnetic Field: An Exact Solution

Popis výsledku v původním jazyce

A new class of exact spacetimes in Einstein&apos;s gravity, which are Kerr black holes immersed in an external uniform magnetic (or electric) field that is oriented along the rotational axis, is presented. These are axisymmetric stationary solutions to the Einstein-Maxwell equations such that (unlike in the Pleba &amp; nacute;ski-Demia &amp; nacute;ski spacetime) the null directions of the Faraday tensor are not aligned with either of the two principal null directions of the Weyl tensor of algebraic type D (unlike the Kerr-Melvin spacetime). Three physical parameters are the black hole mass m, its rotation a, and the external field value B. For vanishing B the metric directly reduces to standard Boyer-Lindquist form of the Kerr black hole, while for zero m we recover a conformally flat Bertotti-Robinson universe with a uniform Maxwell field. For zero a, the spacetime is contained in the Van den Bergh-Carminati solutions which can be understood as the Schwarzschild black hole in a magnetic field. Our family of black holes with nonaligned Maxwell hair- that can be called the Kerr-Bertotti-Robinson black holes-may find application in various studies ranging from mathematical relativity to relativistic astrophysics.

Název v anglickém jazyce

Kerr Black Hole in a Uniform Bertotti-Robinson Magnetic Field: An Exact Solution

Popis výsledku anglicky

A new class of exact spacetimes in Einstein&apos;s gravity, which are Kerr black holes immersed in an external uniform magnetic (or electric) field that is oriented along the rotational axis, is presented. These are axisymmetric stationary solutions to the Einstein-Maxwell equations such that (unlike in the Pleba &amp; nacute;ski-Demia &amp; nacute;ski spacetime) the null directions of the Faraday tensor are not aligned with either of the two principal null directions of the Weyl tensor of algebraic type D (unlike the Kerr-Melvin spacetime). Three physical parameters are the black hole mass m, its rotation a, and the external field value B. For vanishing B the metric directly reduces to standard Boyer-Lindquist form of the Kerr black hole, while for zero m we recover a conformally flat Bertotti-Robinson universe with a uniform Maxwell field. For zero a, the spacetime is contained in the Van den Bergh-Carminati solutions which can be understood as the Schwarzschild black hole in a magnetic field. Our family of black holes with nonaligned Maxwell hair- that can be called the Kerr-Bertotti-Robinson black holes-may find application in various studies ranging from mathematical relativity to relativistic astrophysics.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10300 - Physical sciences

Projekt

<a href="/cs/project/GA23-05914S" target="_blank" >GA23-05914S: Pokročilé techniky aplikované na přesné prostoročasy s černými dírami a gravitačními vlnami</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review Letters

ISSN

0031-9007

e-ISSN

1079-7114

Svazek periodika

135

Číslo periodika v rámci svazku

18

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

181401

Kód UT WoS článku

001610975300001

EID výsledku v databázi Scopus

2-s2.0-105022231726