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Related papers: Constraining Intermediate-Mass Black Holes in Glob…

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A galaxy halo may contain a large number of intermediate mass black holes (IMBHs) with masses in the range of 10^{2-6} solar mass. We propose to directly detect these IMBHs by observing multiply imaged QSO-galaxy or galaxy-galaxy strong…

Cosmology and Nongalactic Astrophysics · Physics 2014-09-08 Kaiki Taro Inoue , Valery Rashkov , Joseph Silk , Piero Madau

Whether intermediate-mass black holes reside in nearby star clusters has remained contested for decades. We address this question by training neural network and random forest regressors on synthetic catalogs generated with the {\sc Rapster}…

Astrophysics of Galaxies · Physics 2026-05-22 Konstantinos Kritos , Digvijay Wadekar , Emanuele Berti

An intermediate-mass black hole (IMBH) was recently reported to reside in the centre of the Galactic globular cluster (GC) NGC 6624, based on timing observations of a millisecond pulsar (MSP) located near the cluster centre in projection.…

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) 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

The level of mass segregation in the core of globular clusters has been previously proposed as a potential indicator of the dynamical constituents of the system, such as presence of a significant population of stellar-mass black holes…

Astrophysics of Galaxies · Physics 2019-03-27 Ruggero de Vita , Michele Trenti , Morgan MacLeod

This paper reviews the subject of intermediate-mass black holes (IMBHs) with masses between those of "stellar-mass" and "super-massive" black holes. The existence of IMBHs is a real possibility: they might plausibly have formed as remnants…

Astrophysics · Physics 2007-05-23 Roeland P. van der Marel

The search for intermediate-mass black holes (IMBHs) in the centre of globular clusters is often based on the observation of a central cusp in the surface brightness profile and a rise towards the centre in the velocity dispersion profiles.…

Astrophysics of Galaxies · Physics 2018-06-27 Alice Zocchi , Mark Gieles , Vincent Hénault-Brunet

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

Observational evidence has been mounting for the existence of intermediate mass black holes (IMBHs, 10^2-10^5 Msun), but observing them at all, much less constraining their masses, is very challenging. In one theorized formation channel,…

Recent studies suggest that numerous intermediate-mass black holes (IMBHs) may wander undetected across the Universe, emitting little radiation. These IMBHs largely preserve their birth masses, offering critical insights into the formation…

Astrophysics of Galaxies · Physics 2025-04-21 Zihao Wu , Luis C. Ho

In order to constrain the density of intermediate-mass black holes (IMBHs) in galaxies, we run smoothed particle hydrodynamics (SPH) simulations of a gas-rich disc dwarf galaxy, where different halo and disc populations of IMBHs are…

Astrophysics · Physics 2008-11-26 M. Mapelli

The masses of supermassive black holes (SMBHs, M_BH=10^6-10^11 Msun) in the centres of galaxies are related to the host stellar spheroid mass and velocity dispersion. A key question is how these relations originate, and over which range of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 J. M. Diederik Kruijssen , Nora Lützgendorf

The dynamical evolution of binaries of intermediate-massive black holes (IMBHs, massive black holes with a mass ranging between $10^2$ and $10^4 M_{\odot}$) in stellar clusters has recently received an increasing amount of attention. This…

Astrophysics of Galaxies · Physics 2015-05-13 Pau Amaro-Seoane , Christoph Eichhorn , Edward K. Porter , Rainer Spurzem

Intermediate mass black holes (10^2 < M_BH< 10^5 Msun) are an open question in our understanding of black hole evolution and growth. They have long been linked to dense star cluster environments thanks to cluster dynamics, but there are a…

The surface brightness profiles of globular clusters are conventionally described with the well-known King profile. However, observations of young massive clusters (YMCs) in the local Universe suggest that they are better fit by simple…

Astrophysics of Galaxies · Physics 2025-03-12 Kuldeep Sharma , Carl L. Rodriguez

We present a detailed dynamical analysis of the projected density and kinematical data available for the globular cluster Omega Cen. We solve the spherical anisotropic Jeans equation to predict the projected profiles of the RMS velocity in…

Astrophysics of Galaxies · Physics 2010-02-01 Roeland P. van der Marel , Jay Anderson

The James Webb Space Telescope (JWST) has revealed a population of dense stellar systems at high redshift, including the "Cosmic Gems" arc ($z \sim 10.2$) and the "Firefly Sparkle" ($z \sim 8.3$). With masses in the range of $10^5$…

Astrophysics of Galaxies · Physics 2026-05-29 Viola Bocchi , Matías Liempi , Dominik R. G. Schleicher

Context: The existence of intermediate-mass black holes (IMBHs) still poses challenges to theoretical and observational astronomers. Several candidates have been proposed, including the one in the IRS13 cluster in the Galactic centre, where…

Astrophysics of Galaxies · Physics 2024-12-18 Václav Pavlík , Vladimír Karas , Bhavana Bhat , Florian Peißker , Andreas Eckart

We present the first results of a series of Monte-Carlo simulations investigating the imprint of a central black hole on the core structure of a globular cluster. We investigate the three-dimensional and the projected density profile of the…

Astrophysics · Physics 2008-03-07 Stefan Umbreit , John M. Fregeau , Frederic A. Rasio
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