Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 044019 |
| Seitenumfang | 11 |
| Fachzeitschrift | Physical Review D |
| Jahrgang | 105 |
| Ausgabenummer | 4 |
| Publikationsstatus | Veröffentlicht - 9 Feb. 2022 |
Abstract
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Physik und Astronomie (sonstige)
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in: Physical Review D, Jahrgang 105, Nr. 4, 044019 , 09.02.2022.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Tidal deformation of dynamical horizons in binary black hole mergers
AU - Prasad, Vaishak
AU - Gupta, Anshu
AU - Bose, Sukanta
AU - Krishnan, Badri
N1 - Funding Information: This research was supported in part by a grant from the Navajbai Ratan Tata Trust. V. P. is funded by the Shyama Prasad Mukherjee Fellowship (CSIR). The numerical simulations for this paper were performed on the Pegasus cluster at The Inter-University Centre for Astronomy and Astrophysics, Pune, India (IUCAA). [This manuscript has been assigned the LIGO Preprint number LIGO-P2100109.]
PY - 2022/2/9
Y1 - 2022/2/9
N2 - An important physical phenomenon that manifests itself during the inspiral of two orbiting compact objects is the tidal deformation of each under the gravitational influence of its companion. In the case of binary neutron star mergers, this tidal deformation and the associated Love numbers have been used to probe properties of dense matter and the nuclear equation of state. Nonspinning black holes on the other hand have a vanishing (field) tidal Love number in general relativity. This pertains to the deformation of the asymptotic gravitational field. In certain cases, especially in the late stages of the inspiral phase when the black holes get close to each other, the source multipole moments might be more relevant in probing their properties and the no-hair conjecture; contrastingly, these Love numbers do not vanish. In this paper, we track the source multipole moments in simulations of several binary black hole mergers and calculate these Love numbers. We present evidence that, at least for modest mass ratios, the behavior of the source multipole moments is universal.
AB - An important physical phenomenon that manifests itself during the inspiral of two orbiting compact objects is the tidal deformation of each under the gravitational influence of its companion. In the case of binary neutron star mergers, this tidal deformation and the associated Love numbers have been used to probe properties of dense matter and the nuclear equation of state. Nonspinning black holes on the other hand have a vanishing (field) tidal Love number in general relativity. This pertains to the deformation of the asymptotic gravitational field. In certain cases, especially in the late stages of the inspiral phase when the black holes get close to each other, the source multipole moments might be more relevant in probing their properties and the no-hair conjecture; contrastingly, these Love numbers do not vanish. In this paper, we track the source multipole moments in simulations of several binary black hole mergers and calculate these Love numbers. We present evidence that, at least for modest mass ratios, the behavior of the source multipole moments is universal.
KW - gr-qc
UR - http://www.scopus.com/inward/record.url?scp=85125395892&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.105.044019
DO - 10.1103/PhysRevD.105.044019
M3 - Article
VL - 105
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 4
M1 - 044019
ER -