Shielding a charged black hole
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Shielding a charged black hole. / Feng, Justin C.; Chakraborty, Sumanta; Cardoso, Vitor.
I: Physical Review D, Bind 107, Nr. 4, 044050, 15.02.2023.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Shielding a charged black hole
AU - Feng, Justin C.
AU - Chakraborty, Sumanta
AU - Cardoso, Vitor
N1 - Publisher Copyright: © 2023 American Physical Society.
PY - 2023/2/15
Y1 - 2023/2/15
N2 - We describe a shielding mechanism for a charged black hole immersed in a background involving charged matter fields, solely arising from the Einstein-Maxwell field equations. In particular, we consider a charged generalization of the Einstein cluster, that is a charged black hole surrounded by an effective fluid model for a partially charged dust cloud. We show that the shielding mechanism, arising thereof, is generic and appears in a different parametrization of the problem as well. In this process, we provide the most general electrovacuum solution in a spacetime region devoid of charges, but in the presence of a static and spherically symmetric charge distribution elsewhere. Side by side, we also introduce a convenient parametrization, providing the global solution of the Einstein-Maxwell's field equations in the presence of a charged black hole within the environment of charged fluid. We also comment on the nature of the photon sphere, shadow radius and the eikonal quasinormal modes in the Einstein-Maxwell cluster.
AB - We describe a shielding mechanism for a charged black hole immersed in a background involving charged matter fields, solely arising from the Einstein-Maxwell field equations. In particular, we consider a charged generalization of the Einstein cluster, that is a charged black hole surrounded by an effective fluid model for a partially charged dust cloud. We show that the shielding mechanism, arising thereof, is generic and appears in a different parametrization of the problem as well. In this process, we provide the most general electrovacuum solution in a spacetime region devoid of charges, but in the presence of a static and spherically symmetric charge distribution elsewhere. Side by side, we also introduce a convenient parametrization, providing the global solution of the Einstein-Maxwell's field equations in the presence of a charged black hole within the environment of charged fluid. We also comment on the nature of the photon sphere, shadow radius and the eikonal quasinormal modes in the Einstein-Maxwell cluster.
U2 - 10.1103/PhysRevD.107.044050
DO - 10.1103/PhysRevD.107.044050
M3 - Journal article
AN - SCOPUS:85149624496
VL - 107
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 4
M1 - 044050
ER -
ID: 356894111