中文
相关论文

相关论文: Multimass modelling of Milky Way globular clusters…

200 篇论文

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

Sizeable number of stellar-mass black holes (BHs) in globular clusters (GCs) can strongly influence the dynamical evolution and observational properties of their host cluster. Using results from a large set of numerical simulations, we…

星系天体物理 · 物理学 2020-03-18 Abbas Askar , Mirek Giersz , Manuel Arca Sedda , Ammar Askar , Mario Pasquato , Agostino Leveque

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

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

Recent studies suggest that globular clusters (GCs) may retain a substantial population of stellar-mass black holes (BHs), in contrast to the long-held belief of a few to zero BHs. We model the population of BH low-mass X-ray binaries…

高能天体物理现象 · 物理学 2018-03-28 Matthew Giesler , Drew Clausen , Christian D. Ott

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

In this work, we investigate the black hole (BH) population of globular clusters (GCs) in Milky Way- (MW) and Andromeda- (M31) like galaxies. We combine the population synthesis code MASinGa and the MOCCA-Survey Database I to infer the…

星系天体物理 · 物理学 2023-02-01 A. Leveque , M. Giersz , A. Askar , M. Arca-Sedda , A. Olejak

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

Comparing the dynamical and stellar masses of Milky Way (MW) globular clusters (GCs) reveals a discrepancy exceeding a factor of two. Since this substantial invisible mass is concentrated in the cluster centre, it is attributed to stellar…

星系天体物理 · 物理学 2025-08-19 Ali Rostami-Shirazi , Holger Baumgardt , Akram Hasani Zonoozi , Mojtaba Ghasemi , Hosein Haghi

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

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

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

In this paper, globular star clusters which contain a sub-system of stellar-mass black holes (BH) are investigated. This is done by considering two-component models, as these are the simplest approximation of more realistic multi-mass…

星系天体物理 · 物理学 2015-06-15 Philip G. Breen , Douglas C. Heggie

Among the most explored directions in the study of dense stellar systems is the investigation of the effects of the retention of supernova remnants, especially that of the massive stellar remnant black holes (BHs), in star clusters. By…

星系天体物理 · 物理学 2011-10-20 Sambaran Banerjee , Pavel Kroupa

In this paper we explore the interplay between intermediate-mass black holes (IMBHs) and their nursing globular clusters (GCs), taking advantage of over 2000 Monte Carlo GC models. We find that the average density of IMBHs sphere of…

星系天体物理 · 物理学 2019-05-06 Manuel Arca Sedda , Abbas Askar , Mirek Giersz

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

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

The distribution of stars and stellar remnants (white dwarfs, neutron stars, black holes) within globular clusters holds clues about their formation and long-term evolution, with important implications for their initial mass function (IMF)…

星系天体物理 · 物理学 2023-05-03 Nolan Dickson , Vincent Hénault-Brunet , Holger Baumgardt , Mark Gieles , Peter Smith

While tens or hundreds of stellar-remnant black holes are expected to form in globular star clusters, it is still unclear how many of those will be retained upon formation, and how many will be ejected through subsequent dynamical…

星系天体物理 · 物理学 2015-06-12 Anna C. Sippel , Jarrod R. Hurley

Gravitational wave emission by coalescing black holes (BHs) kicks the remnant BH with a typical velocity of hundreds of km/s. This velocity is sufficiently large to remove the remnant BH from a low-mass galaxy but is below the escape…

天体物理学 · 物理学 2009-11-13 Ryan M. O'Leary , Abraham Loeb
‹ 上一页 1 2 3 10 下一页 ›