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相关论文: Stellar-Mass Black Holes in Globular Clusters: Dyn…

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Black holes (BHs) play a major role in the structural and dynamical evolutions of Globular Clusters (GCs). Several recent works searched for BHs in Galactic GCs using scaling relations derived from numerical simulations. However, the…

星系天体物理 · 物理学 2025-10-20 Alessandro Della Croce

Recent numerical simulations of globular clusters (GCs) have shown that stellar-mass black holes (BHs) play a fundamental role in driving cluster evolution and shaping their present-day structure. Rapidly mass-segregating to the center of…

太阳与恒星天体物理 · 物理学 2020-08-12 Newlin C. Weatherford , Sourav Chatterjee , Kyle Kremer , Frederic A. Rasio

Globular clusters should be born with significant numbers of stellar-mass black holes (BHs). It has been thought for two decades that very few of these BHs could be retained through the cluster lifetime. With masses ~10 MSun, BHs are ~20…

星系天体物理 · 物理学 2015-06-12 Meagan Morscher , Stefan Umbreit , Will M. Farr , Frederic A. Rasio

Populations of stellar-mass black holes (BHs) in globular clusters (GCs) influence their dynamical evolution and have important implications on one of the main formation channels for gravitational wave sources. Inferring the size of these…

星系天体物理 · 物理学 2024-02-14 Nolan Dickson , Peter J. Smith , Vincent Hénault-Brunet , Mark Gieles , Holger Baumgardt

Context. Globular clusters (GCs) are suggested to host many stellar-mass black holes (BHs) at their centers, thus resulting in ideal testbeds for BH formation and retention theories. BHs are expected to play a major role in GC structural…

星系天体物理 · 物理学 2024-09-04 A. Della Croce , F. I. Aros , E. Vesperini , E. Dalessandro , B. Lanzoni , F. R. Ferraro , B. Bhat

Recent discoveries of black hole (BH) candidates in Galactic and extragalactic globular clusters (GCs) have ignited interest in understanding how BHs dynamically evolve in a GC and the number of BHs ($N_{\rm{BH}}$) that may still be…

太阳与恒星天体物理 · 物理学 2018-09-05 Newlin C. Weatherford , Sourav Chatterjee , Carl L. Rodriguez , Frederic A. Rasio

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

Recent N-body simulations predict that large numbers of stellar black holes (BHs) could remain bound to globular clusters (GCs) at present, and merging BH--BH binaries are produced dynamically in significant numbers. We systematically vary…

星系天体物理 · 物理学 2017-01-11 Sourav Chatterjee , Carl L. Rodriguez , Frederic A. Rasio

Our current understanding of the stellar initial mass function and massive star evolution suggests that young globular clusters may have formed hundreds to thousands of stellar-mass black holes, the remnants of stars with initial masses…

星系天体物理 · 物理学 2015-06-22 Meagan Morscher , Bharath Pattabiraman , Carl Rodriguez , Frederic A. Rasio , Stefan Umbreit

There have been increasing theoretical speculations and observational indications that certain globular clusters (GCs) could contain a sizeable population of stellar mass black holes (BHs). In this paper, we shortlist at least 29 Galactic…

星系天体物理 · 物理学 2018-05-16 Abbas Askar , Manuel Arca Sedda , Mirek Giersz

In this paper, we discuss how globular clusters (GCs) structural and observational properties can be used to infer the presence of a black hole system (BHS) inhabiting their inner regions. We propose a novel way to identify the BHS size,…

星系天体物理 · 物理学 2018-08-01 Manuel Arca Sedda , Abbas Askar , Mirek Giersz

We study the dynamics of stellar-mass black holes (BH) in star clusters with particular attention to the formation of BH-BH binaries, which are interesting as sources of gravitational waves (GW). We examine the properties of these BH-BH…

太阳与恒星天体物理 · 物理学 2015-05-14 Sambaran Banerjee , Holger Baumgardt , Pavel Kroupa

We investigate the dynamics of stellar-mass black holes (BH) in star clusters focusing on the dynamical formation of BH-BH binaries, which are very important sources of gravitational waves (GW). We examine the properties of these BH-BH…

星系天体物理 · 物理学 2011-02-24 Sambaran Banerjee

The dynamical processes involving stellar-remnant black holes (BH) in stellar clusters has always drawn attention due to the BHs' potential in a number of astrophysical phenomena, especially the dynamical formation of binary black holes…

高能天体物理现象 · 物理学 2017-01-18 Sambaran Banerjee

A large fraction of galactic nuclei is expected to host supermassive black hole binaries (BHB), likely formed during the early phase of galaxies assembly and merging. In this paper, we use a large set of state-of-art numerical models to…

Recent observational evidence, numerical simulations and theoretical arguments seem to indicate that stellar mass black holes (BH) persist in stellar systems such as globular star clusters for much longer than previously thought.…

星系天体物理 · 物理学 2015-06-17 Philip G. Breen , Douglas C. Heggie

We present theoretical models for stellar black hole (BH) properties in young, massive star clusters. Using a Monte Carlo code for stellar dynamics, we model realistic star clusters with $N\simeq 5\times10^5$ stars and significant binary…

星系天体物理 · 物理学 2015-06-17 S. Goswami , P. Kiel , F. A. Rasio

Stellar-mass black holes (BHs) can be retained in globular clusters (GCs) until the present. Simulations of GC evolution find that the relaxation driven mass-loss rate is elevated if BHs are present, especially near dissolution. We capture…

星系天体物理 · 物理学 2023-05-17 Mark Gieles , Oleg Y. Gnedin

Numerical simulations have shown that black holes (BHs) can strongly influence the evolution and present-day observational properties of globular clusters (GCs). Using a Monte Carlo code, we construct GC models that match the Milky Way (MW)…

高能天体物理现象 · 物理学 2018-03-21 Kyle Kremer , Claire S. Ye , Sourav Chatterjee , Carl L. Rodriguez , Frederic A. Rasio

We study the long term dynamical evolution of stellar mass black holes (BHs) at the Galactic center (GC) and put constraints on their number and central mass distribution. Models of the GC are considered that have not yet achieved a steady…

星系天体物理 · 物理学 2015-06-18 Fabio Antonini
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