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We have performed N-body simulations of globular clusters (GCs) in order to estimate a detection rate of mergers of Binary stellar-mass Black Holes (BBHs) by means of gravitational wave (GW) observatories. For our estimate, we have only…

星系天体物理 · 物理学 2015-06-16 Ataru Tanikawa

The next generation ground-based gravitational wave interferometers will possibly observe mergers of binary black holes (BBHs) and binary neutron stars (BNSs) to redshift $z\gtrsim{}10$ and $z\gtrsim{}2$, respectively. Here, we characterize…

高能天体物理现象 · 物理学 2019-05-08 Michela Mapelli , Nicola Giacobbo , Filippo Santoliquido , M. Celeste Artale

The merger rate of primordial black hole (PBH) binaries can be used to understand the source population of the merging black hole binaries observable through gravitational-waves (GWs) and also to constrain the possible contribution of PBHs…

高能天体物理现象 · 物理学 2025-12-16 Muhsin Aljaf , Ilias Cholis

Many articles have partially studied the configuration of eccentric orbital binary black hole (BBH) mergers. However, there is a scarcity of systematic and comprehensive research on the effect of eccentricity on BBH dynamics. Thanks to the…

广义相对论与量子宇宙学 · 物理学 2024-11-21 Hao Wang , Yuan-Chuan Zou , Qing-Wen Wu , Yu Liu , Xiaolin Liu

We study the phenomenology of non-spinning eccentric binary black hole (BBH) mergers using numerical relativity (NR) waveforms and \texttt{EccentricIMR} waveform model, as presented in Ref. \cite{Hinder:2017sxy} (Hinder, Kidder, and…

广义相对论与量子宇宙学 · 物理学 2024-03-07 Tousif Islam

Gravitational wave detectors are starting to reveal the redshift evolution of the binary black hole (BBH) merger rate, $R_{\mathrm{BBH}}(z)$. We make predictions for $R_{\mathrm{BBH}}(z)$ as a function of black hole mass for systems…

高能天体物理现象 · 物理学 2022-05-23 L. A. C. van Son , S. E. de Mink , T. Callister , S. Justham , M. Renzo , T. Wagg , F. S. Broekgaarden , F. Kummer , R. Pakmor , I. Mandel

The LIGO and Virgo gravitational-wave detectors have uncovered binary black hole systems with definitively nonzero spins, as well as systems with significant spin residing in the more massive black hole of the pair. We investigate the…

高能天体物理现象 · 物理学 2022-07-12 Michael Zevin , Simone S. Bavera

We examine the relationship between individual black hole (BH) masses in merging binary black hole (BBH) systems. Analyzing the ten BBH detections from LIGO/Virgo's first two observing runs, we find that the masses of the component BHs…

高能天体物理现象 · 物理学 2020-03-18 Maya Fishbach , Daniel E. Holz

We study the merger of black hole (BH)-neutron star (NS) binaries with a variety of BH spins aligned or anti-aligned with the orbital angular momentum, and with the mass ratio in the range MBH/MNS = 2--5, where MBH and MNS are the mass of…

高能天体物理现象 · 物理学 2017-12-27 Koutarou Kyutoku , Hirotada Okawa , Masaru Shibata , Keisuke Taniguchi

Recently discovered bursts of gravitational waves provide a good opportunity to verify the current view on the evolution of close binary stars. Modern population synthesis computer programs help to study this evolution from two main…

高能天体物理现象 · 物理学 2018-11-07 A. I. Bogomazov , V. M. Lipunov , A. V. Tutukov , A. M. Cherepashchuk

Observations of gravitational waves (GWs) from merging compact binaries have become a regular occurrence. The continued advancement of the LIGO-Virgo-KAGRA (LVK) Collaboration detectors have now produced a catalog of over 90 such mergers,…

高能天体物理现象 · 物理学 2024-04-01 Jaxen Godfrey , Bruce Edelman , Ben Farr

Understanding the characteristics of the remnant black hole formed in a binary black hole merger is crucial for conducting gravitational wave astronomy. Typically, models of remnant black holes provide information about their mass, spin,…

The dense environment of globular clusters (GCs) can facilitate the formation of binary black holes (BBHs), some of which can merge with gravitational waves (GW) within the age of the Universe. We have performed a survey of Monte-Carlo…

高能天体物理现象 · 物理学 2018-08-22 Jongsuk Hong , Enrico Vesperini , Abbas Askar , Mirek Giersz , Magdalena Szkudlarek , Tomasz Bulik

We study the dynamical evolution of eccentric massive black hole binaries (MBHBs) interacting with unbound stars by means of an extensive set of three body scattering experiments. Compared to previous studies, we extend the investigation…

The spins of black holes in merging binaries can reveal information related to the formation and evolution of these systems through their gravitational wave emission. Combining events to infer the astrophysical distribution of black hole…

高能天体物理现象 · 物理学 2023-03-15 Jacob Golomb , Colm Talbot

The evolution of the supermassive Black Hole (BH) population across cosmic times remains a central unresolved issue in modern astrophysics, due to the many noticeable uncertainties in the involved physical processes that span a huge range…

宇宙学与河外天体物理 · 物理学 2025-12-05 Andrea Lapi , Francesco Shankar , Michele Bosi , Daniel Roberts , Hao Fu , Karthik M. Varadarajan , Lumen Boco

The population-level distributions of the masses, spins, and redshifts of binary black holes (BBHs) observed using gravitational waves can shed light on how these systems form and evolve. Because of the complex astrophysical processes…

高能天体物理现象 · 物理学 2022-08-11 Sylvia Biscoveanu , Thomas A. Callister , Carl-Johan Haster , Ken K. Y. Ng , Salvatore Vitale , Will Farr

We study the impact of mass-transfer physics on the observable properties of binary black hole populations formed through isolated binary evolution. We investigate the impact of mass-accretion efficiency onto compact objects and…

Several binary black holes (BBHs) have been observed using gravitational wave detectors. For the formation mechanism of BBHs, two main mechanisms, isolated binary evolution and dynamical formation in dense star clusters, have been…

高能天体物理现象 · 物理学 2020-06-03 Jun Kumamoto , Michiko S. Fujii , Ataru Tanikawa

The spin-orbit tilt angles $\theta_{1(2)}$ of merging stellar-mass black holes provide key insights into their astrophysical origin. Non-parametric population modelling of The LIGO, Virgo, and KAGRA Collaborations (2025a, arXiv:2508.18083)…