Distinguishing black holes from horizonless objects through the excitation of resonances during inspiral
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Distinguishing black holes from horizonless objects through the excitation of resonances during inspiral. / Cardoso, Vitor; del Rio, Adrian; Kimura, Masashi.
I: Physical Review D, Bind 100, Nr. 8, 084046, 22.10.2019.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Distinguishing black holes from horizonless objects through the excitation of resonances during inspiral
AU - Cardoso, Vitor
AU - del Rio, Adrian
AU - Kimura, Masashi
N1 - Erratum to Phys. Rev. D 100 , 084046 (2019), DOI: 10.1103/PhysRevD.101.069902
PY - 2019/10/22
Y1 - 2019/10/22
N2 - How good of a description of the dark compact objects in our Universe is the vacuum Kerr geometry? Precision measurements of accreting matter in the deep infrared and gravitational-wave measurements of coalescing objects are finally providing answers to this question. We study the possibility of resonant excitation of the modes of a central object-taken to be very compact but horizonless-during an extreme-mass-ratio inspiral. We show that, for very compact objects, resonances are indeed excited. However, we find that the impact of such excitation on the phase of the gravitational-wave signal is negligible since resonances are crossed very quickly during inspiral.
AB - How good of a description of the dark compact objects in our Universe is the vacuum Kerr geometry? Precision measurements of accreting matter in the deep infrared and gravitational-wave measurements of coalescing objects are finally providing answers to this question. We study the possibility of resonant excitation of the modes of a central object-taken to be very compact but horizonless-during an extreme-mass-ratio inspiral. We show that, for very compact objects, resonances are indeed excited. However, we find that the impact of such excitation on the phase of the gravitational-wave signal is negligible since resonances are crossed very quickly during inspiral.
KW - GRAVITATIONAL-RADIATION
KW - CIRCULAR ORBIT
KW - PARTICLE
U2 - 10.1103/PhysRevD.100.084046
DO - 10.1103/PhysRevD.100.084046
M3 - Journal article
VL - 100
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 8
M1 - 084046
ER -
ID: 298635433