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The combined observation of gravitational and electromagnetic waves from the coalescence of two neutron stars marks the beginning of multi-messenger astronomy with gravitational waves (GWs). The development of accurate gravitational…

Gravitational waves from neutron star-black hole (NSBH) mergers that undergo tidal disruption provide a potential avenue to study the equation of state of neutron stars and hence the behaviour of matter at its most extreme densities. We…

广义相对论与量子宇宙学 · 物理学 2023-05-31 Teagan A. Clarke , Lani Chastain , Paul D. Lasky , Eric Thrane

In this paper, we present 52 new numerical-relativity (NR) simulations of black-hole-neutron-star merger (BHNS) mergers and employ the data to inform TEOBResumS-Dal\'i: a multipolar effective-one-body model also including precession and…

广义相对论与量子宇宙学 · 物理学 2025-07-02 Alejandra Gonzalez , Sebastiano Bernuzzi , Alireza Rashti , Francesco Brandoli , Rossella Gamba

Black hole-neutron star (BHNS) binary mergers are candidate engines for generating both short-hard gamma-ray bursts (SGRBs) and detectable gravitational waves. Using our most recent conformal thin-sandwich BHNS initial data and our fully…

天体物理学 · 物理学 2009-09-02 Zachariah B. Etienne , Yuk Tung Liu , Stuart L. Shapiro , Thomas W. Baumgarte

Accurate and fast gravitational waveform (GW) models are essential to extract information about the properties of compact binary systems that generate GWs. Building on previous work, we present an extension of the NRTidal model for binary…

广义相对论与量子宇宙学 · 物理学 2019-08-07 Tim Dietrich , Anuradha Samajdar , Sebastian Khan , Nathan K. Johnson-McDaniel , Reetika Dudi , Wolfgang Tichy

We present an accurate approximation of the full gravitational radiation waveforms generated in the merger of non-eccentric systems of two non-spinning black holes. Utilizing information from recent numerical relativity simulations and the…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Alessandra Buonanno , Yi Pan , John G. Baker , Joan Centrella , Bernard J. Kelly , Sean T. McWilliams , James R. van Meter

Black hole-neutron star binary mergers display a much richer phenomenology than black hole-black hole mergers, even in the relatively simple case - considered in this paper - in which both the black hole and the neutron star are…

广义相对论与量子宇宙学 · 物理学 2015-06-16 Francesco Pannarale , Emanuele Berti , Koutarou Kyutoku , Masaru Shibata

Spin precession is one of the key physical effects that could unveil the origin of the compact binaries detected by ground- and space-based gravitational-wave (GW) detectors, and shed light on their possible formation channels. Efficiently…

Over the course of the third observing run of LIGO-Virgo-KAGRA Collaboration, several gravitational-wave (GW) neutron star--black hole (NSBH) candidates have been announced. By assuming these candidates are real signals and of astrophysical…

高能天体物理现象 · 物理学 2022-04-07 Jin-Ping Zhu , Shichao Wu , Ying Qin , Bing Zhang , He Gao , Zhoujian Cao

The availability of accurate numerical waveforms is an important requirement for the creation and calibration of reliable waveform models for gravitational wave astrophysics. For black hole-neutron star binaries, very few accurate waveforms…

Identifying weak gravitational wave signals in noise and estimating the source properties require high-precision waveform templates. Numerical relativity (NR) simulations can provide the most accurate waveforms. However, it is challenging…

广义相对论与量子宇宙学 · 物理学 2025-03-07 Xing-Yu Zhong , Wen-Biao Han , Ling Sun

Black hole (BH) - neutron star (NS) binary mergers are not only strong sources of gravitational waves (GWs), but they are also candidates for joint detections in the GW and electromagnetic (EM) spectra. However, the possible emergence of an…

广义相对论与量子宇宙学 · 物理学 2024-09-12 Konrad Topolski , Samuel Tootle , Luciano Rezzolla

We present SEOBNRv5HM, a more accurate and faster inspiral-merger-ringdown gravitational waveform model for quasi-circular, spinning, nonprecessing binary black holes within the effective-one-body (EOB) formalism. Compared to its…

Tremendous progress has been made towards the solution of the binary-black-hole problem in numerical relativity. The waveforms produced by numerical relativity will play a role in gravitational wave detection as either test-beds for…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Birjoo Vaishnav , Ian Hinder , Frank Herrmann , Deirdre Shoemaker

Accurate and reliable gravitational waveform models are crucial in determining the properties of compact binary mergers. In particular, next-generation gravitational-wave detectors will require more accurate waveforms to avoid biases in the…

广义相对论与量子宇宙学 · 物理学 2025-10-21 Adrian Abac , Felip A. Ramis Vidal , Marta Colleoni , Anna Puecher , Alejandra Gonzalez , Tim Dietrich

After the successful detection of a gravitational-wave (GW) signal and its associated electromagnetic (EM) counterparts from GW170817, neutron star--black hole (NSBH) mergers have been highly expected to be the next type of multi-messenger…

高能天体物理现象 · 物理学 2022-04-20 Rui-Chong Hu , Jin-Ping Zhu , Ying Qin , Bing Zhang , En-Wei Liang , Yong Shao

We construct an inspiral-merger-ringdown eccentric gravitational-wave (GW) model for binary black holes with non-precessing spins within the effective-one-body formalism. This waveform model, SEOBNRv4EHM, extends the accurate quasi-circular…

广义相对论与量子宇宙学 · 物理学 2022-03-02 Antoni Ramos-Buades , Alessandra Buonanno , Mohammed Khalil , Serguei Ossokine

We present the first attempt at calibrating the effective-one-body (EOB) model to accurate numerical-relativity simulations of spinning, non-precessing black-hole binaries. Aligning the EOB and numerical waveforms at low frequency over a…

广义相对论与量子宇宙学 · 物理学 2010-05-27 Yi Pan , Alessandra Buonanno , Luisa T. Buchman , Tony Chu , Lawrence E. Kidder , Harald P. Pfeiffer , Mark A. Scheel

Searching for gravitational waves (GWs) from binary black holes (BBHs) with LIGO and Virgo involves matched-filtering data against a set of representative signal waveforms --- a template bank --- chosen to cover the full signal space of…

广义相对论与量子宇宙学 · 物理学 2016-06-08 Collin Capano , Ian Harry , Stephen Privitera , Alessandra Buonanno

We continue the program of constructing, within the Effective-One-Body (EOB) approach, high accuracy, faithful analytic waveforms describing the gravitational wave signal emitted by inspiralling and coalescing binary black holes (BHs). We…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Thibault Damour , Alessandro Nagar