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Related papers: Intermediate-Mass Black Holes in Extragalactic Glo…

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The detection of intermediate mass black holes (IMBHs) in Galactic globular clusters (GCs) has so far been controversial. In order to characterize the effectiveness of integrated-light spectroscopy through integral field units, we analyze…

Astrophysics of Galaxies · Physics 2017-04-19 Ruggero de Vita , Michele Trenti , Paolo Bianchini , Abbas Askar , Mirek Giersz , Glenn van de Ven

The recent discovery of gravitational waves has opened new horizons for physics. Current and upcoming missions, such as LIGO, VIRGO, KAGRA, and LISA, promise to shed light on black holes of every size from stellar mass (SBH) sizes up to…

Astrophysics of Galaxies · Physics 2018-04-11 Giacomo Fragione , Idan Ginsburg , Bence Kocsis

Nantais et al. used the Hubble Space Telescope to localize probable globular clusters (GCs) in M81, a spiral galaxy at a distance of 3.63 Mpc. Theory predicts that GCs can host intermediate-mass black holes (IMBHs) with masses M_BH \sim 100…

Astrophysics of Galaxies · Physics 2016-07-06 J. M. Wrobel , J. C. A. Miller-Jones , M. J. Middleton

Intermediate mass black holes (IMBHs) are an (as yet) elusive class of black holes that are expected to lie in the $10^2-10^5\,M_{\odot}$ range, between the firmly established stellar-mass black holes and ${\gtrsim}10^6\,M_{\odot}$…

Astrophysics of Galaxies · Physics 2018-05-16 Filippos Koliopanos

Spectroscopic and photometric observations show that many globular clusters host multiple stellar populations, challenging the common paradigm that globular clusters are "simple stellar populations" composed of stars of uniform age and…

Astrophysics of Galaxies · Physics 2015-05-18 Enrico Vesperini , Stephen L. W. McMillan , Annibale D'Ercole , Francesca D'Antona

Intermediate-mass black holes (IMBHs), with masses of hundreds to thousands of solar masses, will be unique sources of gravitational waves for LISA. Here we discuss their context as well as specific characteristics of IMBH-IMBH and…

Astrophysics · Physics 2010-04-21 M. Coleman Miller

Evidence has been mounting for the existence of black holes with masses from 10^2 to 10^4 M_Solar associated with stellar clusters. Such intermediate-mass black holes (IMBHs) will encounter other black holes in the dense cores of these…

Astrophysics · Physics 2009-11-07 Kayhan Gultekin , M. Coleman Miller , Douglas P. Hamilton

Many observed globular clusters (GCs) seem to show a central overabundance of mass whose nature has not yet fully understood. Indeed, it is not clear whether it is due to a central intermediate mass black hole (IMBH) or to a massive stellar…

Astrophysics of Galaxies · Physics 2016-06-23 Manuel Arca-Sedda

We have followed the evolution of multi-mass star clusters containing massive central black holes through collisional N-body simulations done on GRAPE6. Each cluster is composed of between 16,384 to 131,072 stars together with a black hole…

Astrophysics · Physics 2009-11-10 Holger Baumgardt , Junichiro Makino , Toshikazu Ebisuzaki

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

Intermediate mass black holes (IMBHs) may be the link between stellar mass holes and the supermassive variety in the nuclei of galaxies, and globular clusters (GCs) may be one of the most promising environments for their formation. Here we…

High Energy Astrophysical Phenomena · Physics 2023-12-20 Vivian L. Tang , Piero Madau , Elisa Bortolas , Eric W. Peng

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

Theoretical models predict that intermediate-mass black holes (IMBHs) exist in globular clusters (GCs), but observational evidence remains elusive. Millisecond pulsars (MSPs), which are abundant in GCs and have served as precise probes for…

High Energy Astrophysical Phenomena · Physics 2025-07-15 Xian Chen , Verónica Vázquez-Aceves , Siyuan Chen , Kejia Lee , Yanjun Guo , Kuo Liu

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

Intermediate-mass black holes (IMBHs) occupy the $ 10^2 - 10^5\,M_\odot $ range, but their existence remains poorly constrained. Only a few candidates have been suggested in dwarf galaxies, globular clusters, and LIGO-Virgo-Kagra…

Astrophysics of Galaxies · Physics 2025-10-10 Cristiano Ugolini

By means of a multimass isotropic and spherical model that includes the self-consistent treatment of a central intermediate-mass black hole (IMBH), the influence of this black hole on the morphological and physical properties of globular…

Astrophysics · Physics 2008-11-26 P. Miocchi

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

Observations suggest that star clusters often form in binaries or larger bound groups. Therefore, mergers between two clusters are likely to occur. If these clusters both harbor an intermediate-mass black hole (IMBH; 10^{2-4} Msun) in their…

Astrophysics · Physics 2009-11-11 Pau Amaro-Seoane , Marc Freitag

The formation of supermassive black holes at high redshift still remains a puzzle to astronomers. Their growth becomes reasonable only when starting from a massive seed black hole with mass of the order of 10^2 - 10^5 M_SUN.…

Intermediate-mass black holes (IMBHs) could form via runaway merging of massive stars in a young massive star cluster (YMC). We combine a suite of numerical simulations of YMC formation with a semi-analytic model for dynamical friction and…

Astrophysics of Galaxies · Physics 2021-05-27 Yanlong Shi , Michael Y. Grudić , Philip F. Hopkins