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相关论文: Merging black hole binaries in galactic nuclei: im…

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Black hole-neutron star (BHNS) binaries are expected to be among the leading sources of gravitational waves observable by ground-based detectors, and may be the progenitors of short-hard gamma ray bursts (SGRBs) as well. Here, we discuss…

Recent gravitational wave observations include possible detections of black hole - neutron star binary mergers. As with binary black hole mergers, numerical simulations help characterize the sources. For binary systems with neutron star…

广义相对论与量子宇宙学 · 物理学 2024-04-16 Bing-Jyun Tsao , Bhavesh Khamesra , Miguel Gracia-Linares , Pablo Laguna

The formation and evolution of binary black holes (BH) is studied using the modern evolutionary scenario for very massive stars with high mass loss (Vanbeveren et al. 1998). Main sequence stars with masses $M>35 M_\odot$ are assumed to form…

天体物理学 · 物理学 2007-05-23 K. A. Postnov , M. E. Prokhorov

The connection between the binary black hole (BBH) mergers observed by LIGO-Virgo-KAGRA (LVK) and their stellar progenitors remains uncertain. Specifically, the fraction $\epsilon$ of stellar mass that ends up in BBH mergers and the delay…

高能天体物理现象 · 物理学 2024-03-27 Aryanna Schiebelbein-Zwack , Maya Fishbach

Binary black hole (BBH) mergers are the primary sources of gravitational wave (GW) events detected by LIGO/Virgo. Binary black holes embedded in the accretion discs of active galactic nuclei (AGN) are possible candidates for such GW events.…

星系天体物理 · 物理学 2020-07-22 W. Ishibashi , M. Gröbner

Merging rates of compact binaries (double neutron stars or black holes) are calculated based on the modern concept of binary stellar evolution. It is found that the initial laser interferometers with an rms-sensitivity of $10^{-21}$ at the…

天体物理学 · 物理学 2009-09-25 M. E. Prokhorov , V. M. Lipunov , K. A. Postnov

Multi-frequency gravitational wave (GW) observations are useful probes of the formation processes of coalescing stellar-mass binary black holes (BBHs). We discuss the phase drift in the GW inspiral waveform of the merging BBH caused by its…

高能天体物理现象 · 物理学 2017-10-04 Kohei Inayoshi , Nicola Tamanini , Chiara Caprini , Zoltan Haiman

Black hole (BH) triples represent one of the astrophysical pathways for BH mergers in the Universe detectable by LIGO and VIRGO. We study the formation of BH triples via binary-binary encounters in dense clusters, showing that one-third of…

高能天体物理现象 · 物理学 2021-07-21 Manuel Arca-Sedda , Gongjie Li , Bence Kocsis

Binary black holes (BBHs) born from the evolution of Population III (Pop. III) stars are one of the main high-redshift targets for next-generation ground-based gravitational-wave (GW) detectors. Their predicted initial mass function and…

The gravitational wave event GW190521 involves the merger of two black holes of $\sim 85\text{M}_\odot$ and $\sim 66\text{M}_\odot$ forming an intermediate-mass black hole (IMBH) of mass $\sim 142\text{M}_\odot$. Both progenitors are…

高能天体物理现象 · 物理学 2022-12-14 Oliver Anagnostou , Michele Trenti , Andrew Melatos

We present results of numerical simulations of sequences of binary-single scattering events of black holes in dense stellar environments. The simulations cover a wide range of mass ratios from equal mass objects to 1000:10:10 solar masses…

天体物理学 · 物理学 2009-11-10 Kayhan Gultekin , M. Coleman Miller , Douglas P. Hamilton

Hierarchical triples are expected to be produced by the frequent binary-mediated interactions in the cores of globular clusters. In some of these triples, the tertiary companion can drive the inner binary to merger following large…

Black holes exceeding a billion solar masses have been detected at redshifts greater than six. The rapid formation of these objects may suggest a massive early seed or a period of growth faster than Eddington. Here we suggest a new…

宇宙学与河外天体物理 · 物理学 2015-05-28 Melvyn B. Davies , M. Coleman Miller , Jillian M. Bellovary

With our galactic evolutionary code that contains a detailed intermediate mass and massive binary population model, we study the temporal evolution of the galactic population of double neutron star binaries, mixed systems with a neutron…

太阳与恒星天体物理 · 物理学 2014-05-08 N. Mennekens , D. Vanbeveren

The recent detections of the binary black hole mergers GW150914 and GW151226 have inaugurated the field of gravitational-wave astronomy. For the two main formation channels that have been proposed for these sources, isolated binary…

高能天体物理现象 · 物理学 2016-11-23 Carl L. Rodriguez , Michael Zevin , Chris Pankow , Vicky Kalogera , Frederic A. Rasio

In paper I of this series we showed that a large percentage of the binary black hole (BBH) mergers that form through dynamical interactions in globular clusters will have significant eccentricity in the ~10^{-3}-10^{-1} Hz LISA band. In…

高能天体物理现象 · 物理学 2018-10-19 Daniel J. D'Orazio , Johan Samsing

Supermassive black hole binaries (SMBHBs) are the products of frequent galaxy mergers. The coalescence of the SMBHBs is a distinct source of gravitational wave (GW) radiation. The detections of the strong GW radiation and their possible…

星系天体物理 · 物理学 2015-06-03 Shuo Li , F. K. Liu , Peter Berczik , Xian Chen , Rainer Spurzem

The dynamical formation of binary black holes (BBHs) in globular clusters (GCs) may contribute significantly to the observed gravitational wave (GW) merger rate. Furthermore, LISA may detect many BBH sources from GCs at mHz frequencies,…

高能天体物理现象 · 物理学 2025-05-13 Zeyuan Xuan , Kyle Kremer , Smadar Naoz

We present the first systematic study on how distant weak interactions impact the dynamical evolution of merging binary black holes (BBHs) in dense stellar clusters. Recent studies indicate that dense clusters are likely to significantly…

高能天体物理现象 · 物理学 2019-08-21 Johan Samsing , Adrian S. Hamers , Jacob G. Tyles

In order to investigate the formation rate of binary black holes (BBHs) in stellar clusters with a mass comparable to open clusters, we performed a series of direct $N$-body simulations of open clusters with a mass of $2.5\times10^3$ (Model…

高能天体物理现象 · 物理学 2019-04-24 Jun Kumamoto , Michiko S. Fujii , Ataru Tanikawa
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