Love numbers and magnetic susceptibility of charged black holes
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Standard
Love numbers and magnetic susceptibility of charged black holes. / Pereniguez, David; Cardoso, Vitor.
I: Physical Review D, Bind 105, Nr. 4, 044026, 11.02.2022.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Love numbers and magnetic susceptibility of charged black holes
AU - Pereniguez, David
AU - Cardoso, Vitor
PY - 2022/2/11
Y1 - 2022/2/11
N2 - The response of black holes to companions is of fundamental importance in the context of their dynamics and of gravitational-wave emission. Here, we explore the effect of charge on the static response of black holes. With a view to constraining broader setups, we consider charged geometries in an arbitrary number of spacetime dimensions D > 4. Tensor tidal Love numbers are shown to follow a power law in the H , and thus vanish at extremality. In contrast, the black hole charge Q excites new modes of polarization in the vector sector that are otherwise not responsive in the neutral limit. In four dimensions, Love numbers and magnetic susceptibilities vanish for all values of the charge that respect the extremality bound. Using the theory of Fuchsian equations we are able to obtain analytical results in most cases, even beyond the hypergeometric instances.
AB - The response of black holes to companions is of fundamental importance in the context of their dynamics and of gravitational-wave emission. Here, we explore the effect of charge on the static response of black holes. With a view to constraining broader setups, we consider charged geometries in an arbitrary number of spacetime dimensions D > 4. Tensor tidal Love numbers are shown to follow a power law in the H , and thus vanish at extremality. In contrast, the black hole charge Q excites new modes of polarization in the vector sector that are otherwise not responsive in the neutral limit. In four dimensions, Love numbers and magnetic susceptibilities vanish for all values of the charge that respect the extremality bound. Using the theory of Fuchsian equations we are able to obtain analytical results in most cases, even beyond the hypergeometric instances.
KW - PERTURBATIONS
KW - FIELD
U2 - 10.1103/PhysRevD.105.044026
DO - 10.1103/PhysRevD.105.044026
M3 - Journal article
VL - 105
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 4
M1 - 044026
ER -
ID: 303683571