Gravitational waves and higher dimensions: Love numbers and Kaluza-Klein excitations

Research output: Contribution to journal › Journal article › Research › peer-review

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Gravitational waves and higher dimensions : Love numbers and Kaluza-Klein excitations. / Cardoso, Vitor; Gualtieri, Leonardo; Moore, Christopher J.

In: Physical Review D, Vol. 100, No. 12, 124037, 16.12.2019.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Cardoso, V, Gualtieri, L & Moore, CJ 2019, 'Gravitational waves and higher dimensions: Love numbers and Kaluza-Klein excitations', Physical Review D, vol. 100, no. 12, 124037. https://doi.org/10.1103/PhysRevD.100.124037

APA

Cardoso, V., Gualtieri, L., & Moore, C. J. (2019). Gravitational waves and higher dimensions: Love numbers and Kaluza-Klein excitations. Physical Review D, 100(12), [124037]. https://doi.org/10.1103/PhysRevD.100.124037

Vancouver

Cardoso V, Gualtieri L, Moore CJ. Gravitational waves and higher dimensions: Love numbers and Kaluza-Klein excitations. Physical Review D. 2019 Dec 16;100(12). 124037. https://doi.org/10.1103/PhysRevD.100.124037

Author

Cardoso, Vitor ; Gualtieri, Leonardo ; Moore, Christopher J. / Gravitational waves and higher dimensions : Love numbers and Kaluza-Klein excitations. In: Physical Review D. 2019 ; Vol. 100, No. 12.

Bibtex

@article{65bffc632e184b67861b00c31afb0d7a,
title = "Gravitational waves and higher dimensions: Love numbers and Kaluza-Klein excitations",
abstract = "Gravitational-wave observations provide a wealth of information on the nature and properties of black holes. Among these, tidal Love numbers or the multipole moments of the inspiraling and final objects are key to a number of constraints. Here, we consider these observations in the context of higher-dimensional scenarios, with flat large extra dimensions. We show that-as might be anticipated, but not always appreciated in the literature-physically motivated setups are unconstrained by gravitational-wave data. Dynamical processes that do not excite the Kaluza-Klein (KK) modes lead to a signal identical to that in four-dimensional general relativity in vacuum. In addition, any possible excitation of the KK modes is highly suppressed relative to the dominant quadrupolar term; given existing constraints on the extra dimensions and the masses of the objects seen in gravitational-wave observations, KK modes appear at post-Newtonian order similar to 10(11). Finally, we recompute the tidal Love numbers of spherical black holes in higher dimensions. We confirm that these are different from zero, but comparing with previous computations we find a different magnitude and sign.",
keywords = "BLACK-HOLES, MULTIPOLE MOMENTS, SCHWARZSCHILD, PERTURBATIONS, HIERARCHY, PARTICLE, GRAVITY, FIELD",
author = "Vitor Cardoso and Leonardo Gualtieri and Moore, {Christopher J.}",
year = "2019",
month = dec,
day = "16",
doi = "10.1103/PhysRevD.100.124037",
language = "English",
volume = "100",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "12",

}

RIS

TY - JOUR

T1 - Gravitational waves and higher dimensions

T2 - Love numbers and Kaluza-Klein excitations

AU - Cardoso, Vitor

AU - Gualtieri, Leonardo

AU - Moore, Christopher J.

PY - 2019/12/16

Y1 - 2019/12/16

N2 - Gravitational-wave observations provide a wealth of information on the nature and properties of black holes. Among these, tidal Love numbers or the multipole moments of the inspiraling and final objects are key to a number of constraints. Here, we consider these observations in the context of higher-dimensional scenarios, with flat large extra dimensions. We show that-as might be anticipated, but not always appreciated in the literature-physically motivated setups are unconstrained by gravitational-wave data. Dynamical processes that do not excite the Kaluza-Klein (KK) modes lead to a signal identical to that in four-dimensional general relativity in vacuum. In addition, any possible excitation of the KK modes is highly suppressed relative to the dominant quadrupolar term; given existing constraints on the extra dimensions and the masses of the objects seen in gravitational-wave observations, KK modes appear at post-Newtonian order similar to 10(11). Finally, we recompute the tidal Love numbers of spherical black holes in higher dimensions. We confirm that these are different from zero, but comparing with previous computations we find a different magnitude and sign.

AB - Gravitational-wave observations provide a wealth of information on the nature and properties of black holes. Among these, tidal Love numbers or the multipole moments of the inspiraling and final objects are key to a number of constraints. Here, we consider these observations in the context of higher-dimensional scenarios, with flat large extra dimensions. We show that-as might be anticipated, but not always appreciated in the literature-physically motivated setups are unconstrained by gravitational-wave data. Dynamical processes that do not excite the Kaluza-Klein (KK) modes lead to a signal identical to that in four-dimensional general relativity in vacuum. In addition, any possible excitation of the KK modes is highly suppressed relative to the dominant quadrupolar term; given existing constraints on the extra dimensions and the masses of the objects seen in gravitational-wave observations, KK modes appear at post-Newtonian order similar to 10(11). Finally, we recompute the tidal Love numbers of spherical black holes in higher dimensions. We confirm that these are different from zero, but comparing with previous computations we find a different magnitude and sign.

KW - BLACK-HOLES

KW - MULTIPOLE MOMENTS

KW - SCHWARZSCHILD

KW - PERTURBATIONS

KW - HIERARCHY

KW - PARTICLE

KW - GRAVITY

KW - FIELD

U2 - 10.1103/PhysRevD.100.124037

DO - 10.1103/PhysRevD.100.124037

M3 - Journal article

VL - 100

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 12

M1 - 124037

ER -

ID: 298639766