English
Related papers

Related papers: Intermediate-mass black holes in globular clusters…

200 papers

Dense star clusters are promising nurseries for the formation and growth of intermediate-mass black holes (IMBHs; $\sim 10^2-10^5\,\mathrm{M}_{\odot}$), with increasing observational evidence pointing to their presence in massive star…

Astrophysics of Galaxies · Physics 2025-10-07 Abbas Askar , Marcelo C. Vergara , Sohaib Ali

The dynamical evolution of globular clusters (GCs) is tied to their binary population, as binaries segregate to the cluster centre, leading to an increased binary fraction in the core. This central overabundance of mainly hard binaries can…

Intermediate-mass black holes (IMBHs) have not been detected beyond any reasonable doubt, despite their potential role as massive seeds for quasars and sources of tidal disruption events, ultra-luminous X-ray sources, dwarf galaxy feedback,…

Astrophysics of Galaxies · Physics 2020-07-08 Giacomo Fragione , Abraham Loeb , Kyle Kremer , Frederic A. Rasio

This study investigates the detectability of intermediate-mass black holes (IMBHs) within the mass range $10^2-10^5$ solar masses in the globular star clusters of NGC 1399 at a frequency of 300.00 MHz. Employing the theoretical Bondi…

Astrophysics of Galaxies · Physics 2024-09-10 B. Karimi , P. Barmby , S. Abbassi

We study the formation of intermediate-mass ratio inspirals (IMRIs) triggered by the interactions between two stellar black holes (BHs) and an intermediate-mass BH (IMBH) inhabiting the centre of a dense star cluster. We exploit $N$-body…

Astrophysics of Galaxies · Physics 2021-08-18 Manuel Arca-Sedda , Pau Amaro-Seoane , Xian Chen

Stellar-mass and supermassive black holes abound in the Universe, whereas intermediate-mass black holes (IMBHs) of ~10^2-10^5 solar masses in between are largely missing observationally, with few cases found only. Here we report the…

High Energy Astrophysical Phenomena · Physics 2025-01-17 C. -C. Jin , D. -Y. Li , N. Jiang , L. -X. Dai , H. -Q. Cheng , J. -Z. Zhu , C. -W. Yang , A. Rau , P. Baldini , T. -G. Wang , H. -Y. Zhou , W. Yuan , C. Zhang , X. -W. Shu , R. -F. Shen , Y. -L. Wang , S. -X. Wen , Q. -Y. Wu , Y. -B. Wang , L. L. Thomsen , Z. -J. Zhang , W. -J. Zhang , A. Coleiro , R. Eyles-Ferris , X. Fang , L. C. Ho , J. -W. Hu , J. -J. Jin , W. -X. Li , B. -F. Liu , F. -K. Liu , M. -J. Liu , Z. Liu , Y. -J. Lu , A. Merloni , E. -L. Qiao , R. Saxton , R. Soria , S. Wang , Y. -Q. Xue , H. -N. Yang , B. Zhang , W. -D. Zhang , Z. -M. Cai , F. -S. Chen , H. -L. Chen , T. -X. Chen , W. Chen , Y. -H. Chen , Y. -F. Chen , Y. Chen , B. Cordier , C. -Z. Cui , W. -W. Cui , Y. -F. Dai , H. -C. Ding , D. -W. Fan , Z. Fan , H. Feng , J. A. Garcia , J. Guan , D. -W. Han , D. -J. Hou , H. -B. Hu , M. -H. Huang , J. Huo , S. -M. Jia , Z. -Q. Jia , B. -W. Jiang , G. Jin , X. Kong , E. Kuulkers , W. -H. Lei , C. -K. Li , J. -F. Li , L. -H. Li , M. -S. Li , W. Li , Z. -D. Li , T. -Y. Lian , Z. -X. Ling , C. -Z. Liu , H. -Y Liu , H. -Q. Liu , J. -F. Liu , Y. Liu , F. -J. Lu , L. -D. Luo , J. Ma , X. Mao , H. -Y. Mu , K. Nandra , P. O'Brien , H. -W. Pan , X. Pan , G. -J. Qin , N. Rea , J. Sanders , L. -M. Song , H. Sun , S. -L. Sun , X. -J. Sun , Y. -Y. Tan , Q. -J. Tang , Y. -H. Tao , B. -C. Wang , J. Wang , J. -F. Wang , L. Wang , W. -X. Wang , Y. -S. Wang , Z. -X. Wang , Q. -W. Wu , X. -F. Wu , H. -T. Xu , J. -J. Xu , X. -P. Xu , Y. -F. Xu , Z. Xu , C. -B. Xue , S. -J. Xue , Y. -L. Xue , A. -L. Yan , X. -T. Yang , Y. -J. Yang , J. Zhang , M. Zhang , S. -N. Zhang , Y. -H. Zhang , Z. Zhang , Z. Zhang , Z. -L. Zhang , D. -H. Zhao , H. -S. Zhao , X. -F. Zhao , Z. -J. Zhao , J. Zheng , Q. -F. Zhu , Y. -X. Zhu , Z. -C. Zhu , H. Zou

Many young stars reside within the central half-parsec from SgrA*, the supermassive black hole in the Galactic Center. The origin of these stars remains a puzzle. Recently, Hansen and Milosavljevic (2003, HM) have argued that an…

Astrophysics · Physics 2009-11-10 Yuri Levin , Alice S. P. Wu , Edward W. Thommes

Intermediate-mass black holes (IMBHs) of mass $M_{\bullet} \approx 10^{2} - 10^{5}$ solar masses, $M_{\odot}$, are the long-sought missing link between stellar black holes, born of supernovae, and massive black holes, tied to galaxy…

Astrophysics of Galaxies · Physics 2017-09-21 Tal Alexander , Ben Bar-Or

I present an overview of our ongoing project aimed at building a new generation of velocity dispersion profiles ad rotation curves for a representative sample of Galactic globular clusters, from the the radial velocity of hundreds…

Astrophysics of Galaxies · Physics 2017-08-23 Barbara Lanzoni

Intermediate-mass black holes (IMBH) are expected to exist in globular clusters (GCs) and compact stellar systems (CSS) in general, but none have been conclusively detected. Tidal disruption events (TDEs), where a star is tidally disrupted…

Astrophysics of Galaxies · Physics 2025-06-04 Richard T. Pomeroy , Mark A. Norris

We very briefly discuss proposed in the literature possible scenarios for intermediate mass black holes (IMBH) formation in globular clusters. We also discuss the results of the MOCCA simulations of about 2000 models (BigSurvey) regarding…

Astrophysics of Galaxies · Physics 2016-07-29 Mirek Giersz , Nathan Leigh , Arkadiusz Hypki , Abbas Askar , Nora Lützgendorf

In this work, we address the following question: ``can we use the current cosmological simulations to identify intermediate-mass black holes (IMBHs) and quantify a putative population of wandering IMBHs?''. We compare wandering-IMBH counts…

Astrophysics of Galaxies · Physics 2025-04-30 Floor van Donkelaar , Lucio Mayer , Pedro R. Capelo , Tomas Tamfal

Context. The problem of the existence of intermediate-mass black holes (IMBHs) at the centre of globular clusters is a hot and controversial topic in current astrophysical research with important implications in stellar and galaxy…

Astrophysics of Galaxies · Physics 2010-06-14 P. Miocchi

Theoretical models suggest that intermediate mass black holes (IMBHs) may form and reside in the centers of globular clusters. IMBHs are still elusive to observations, but the accelerations of pulsars may bring along a unique fingerprint of…

High Energy Astrophysical Phenomena · Physics 2019-10-16 Federico Abbate , Andrea Possenti , Monica Colpi , Mario Spera

Intermediate mass black holes (IMBHs), with masses between 100 to 10^5 M_\odot, represent the link between stellar mass black holes and the supermassive black holes that reside in galaxy centers. While IMBHs are crucial to our understanding…

Astrophysics of Galaxies · Physics 2018-07-25 Jenna M. Cann , Shobita Satyapal , Nicholas P. Abel , Claudio Ricci , Nathan J. Secrest , Laura Blecha , Mario Gliozzi

This study investigates the influence of intermediate-mass black holes (IMBHs) on galactic morphology, focusing on their evolution within dwarf galaxies at high redshift (z~2). Using high-resolution zoom-in cosmological simulations, we…

Astrophysics of Galaxies · Physics 2025-01-22 Da Bi , Dominik R. G. Schleicher , Andres Escala

Repeated mergers of stellar-mass black holes (BHs) in dense star clusters can produce intermediate-mass black holes (IMBHs). In particular, nuclear star clusters at the centers of galaxies have deep enough potential wells to retain most of…

High Energy Astrophysical Phenomena · Physics 2022-07-20 Giacomo Fragione , Abraham Loeb , Bence Kocsis , Frederic A. Rasio

Intermediate-mass black holes (IMBHs), with masses in the range $100-10^{6}$ M$_{\odot}$, are the link between stellar-mass BHs and supermassive BHs (SMBHs). They are thought to be the seeds from which SMBHs grow, which would explain the…

Astrophysics of Galaxies · Physics 2017-05-30 Mar Mezcua

The observational dearth of black holes (BHs) with masses between $\sim$100 and 100,000 $M_\odot$ raises questions about the nature of intermediate-mass black holes (IMBHs). Proposed formation channels for IMBHs include runaway stellar…

Astrophysics of Galaxies · Physics 2026-04-08 Lavinia Paiella , Manuel Arca Sedda , Benedetta Mestichelli , Cristiano Ugolini

Numerical simulations of the dynamical friction suffered by a Galactic center star cluster harboring an intermediate-mass black hole (IMBH) have been performed. Gerhard has suggested that dynamical friction, which causes a cluster to lose…

Astrophysics · Physics 2009-11-10 Sungsoo S. Kim , Donald F. Figer , Mark Morris
‹ Prev 1 3 4 5 6 7 10 Next ›