TY - JOUR
T1 - Do black holes remember what they are made of?
AU - Bandyopadhyay, Harshraj
AU - Radice, David
AU - Prakash, Aviral
AU - Dhani, Arnab
AU - Logoteta, Domenico
AU - Perego, Albino
AU - Kashyap, Rahul
N1 - Publisher Copyright:
© 2024 The Author(s). Published by IOP Publishing Ltd.
PY - 2024/7/18
Y1 - 2024/7/18
N2 - We study the ringdown signal of black holes formed in prompt-collapse binary neutron star mergers. We analyze data from 47 numerical relativity simulations. We show that the ( ℓ = 2 , m = 2 ) and ( ℓ = 2 , m = 1 ) multipoles of the gravitational wave signal are well fitted by decaying damped exponentials, as predicted by black-hole perturbation theory. We show that the ratio of the amplitude in the two modes depends on the progenitor binary mass ratio q and reduced tidal parameter Λ ~ . Unfortunately, the numerical uncertainty in our data is too large to fully quantify this dependency. If confirmed, these results will enable novel tests of general relativity in the presence of matter with next-generation gravitational-wave observatories.
AB - We study the ringdown signal of black holes formed in prompt-collapse binary neutron star mergers. We analyze data from 47 numerical relativity simulations. We show that the ( ℓ = 2 , m = 2 ) and ( ℓ = 2 , m = 1 ) multipoles of the gravitational wave signal are well fitted by decaying damped exponentials, as predicted by black-hole perturbation theory. We show that the ratio of the amplitude in the two modes depends on the progenitor binary mass ratio q and reduced tidal parameter Λ ~ . Unfortunately, the numerical uncertainty in our data is too large to fully quantify this dependency. If confirmed, these results will enable novel tests of general relativity in the presence of matter with next-generation gravitational-wave observatories.
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U2 - 10.1088/1361-6382/ad56ed
DO - 10.1088/1361-6382/ad56ed
M3 - Article
AN - SCOPUS:85197399775
SN - 0264-9381
VL - 41
JO - Classical and Quantum Gravity
JF - Classical and Quantum Gravity
IS - 14
M1 - 145006
ER -