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Related papers: A black hole in a globular cluster

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Nuclear Star Clusters are observed at the center of many galaxies. In particular in the center of the Milky Way the Nuclear Star Cluster coexists with a cen- tral supermassive black hole. The origin of these clusters is still unknown; a…

Astrophysics of Galaxies · Physics 2015-03-19 Alessandra Mastrobuono-Battisti , Roberto Capuzzo-Dolcetta

We explore the relation between the total globular cluster population in a galaxy (N_GC) and the the mass of its central black hole (M_BH). Using a sample of 33 galaxies, twice as large as the original sample discussed by Burkert & Tremaine…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Gretchen L. H. Harris , William E. Harris

Clusters of galaxies are studied from a theoretical point of view, comparing with observational results whenever possible. The problem is approached both analytically as well as by means of high-resoultion numerical simulations. The dark…

Astrophysics · Physics 2007-05-23 Y. Ascasibar

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

Massive binary black holes form at the centre of galaxies that experience a merger episode. They are expected to coalesce into a larger black hole, following the emission of gravitational waves. Coalescing massive binary black holes are…

Astrophysics of Galaxies · Physics 2015-06-22 Monica Colpi

In this small review we present the actual state the knowledge about weighting black holes. Black holes can be found in stellar binary systems in our Galaxy and in other nearby galaxies, in globular clusters, which we can see in our and…

High Energy Astrophysical Phenomena · Physics 2009-10-05 B. Czerny , M. Nikolajuk

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…

Astrophysics of Galaxies · Physics 2020-03-18 Abbas Askar , Mirek Giersz , Manuel Arca Sedda , Ammar Askar , Mario Pasquato , Agostino Leveque

When a binary star system is tidally disrupted by a supermassive black hole at a galactic nucleus, one star is ejected at a high speed while the other remains in a tightly bound orbit around the black hole. The cluster of tightly bound…

Solar and Stellar Astrophysics · Physics 2013-05-24 Shmuel Balberg , Re'em Sari , Abraham Loeb

Improved observations of globular clusters are uncovering a large number of radio pulsars and of X-ray sources. The latter include binaries in which a neutron star or a white dwarf accretes matter from a companion, recycled pulsars, and…

Astrophysics · Physics 2007-05-23 Frank Verbunt

Black holes formed in dense star clusters, where dynamical interactions are frequent, may have fundamentally different properties than those formed through isolated stellar evolution. Theoretical models for single star evolution predict a…

A significant fraction of the stellar population in the cusp around central black holes of galaxies consists of compact remnants of evolved stars, such as white dwarfs, neutron stars and stellar mass black holes. We estimate the rate of…

Astrophysics · Physics 2015-06-24 S. Sigurdsson , M. J. Rees

This is a pedagogical review of recent results on the interactions of central massive black holes with stars very near them, focused on the black hole in the center of the Milky Way. Table of contents: [1] Introduction [2] Stellar dynamics…

Astrophysics · Physics 2007-05-23 Tal Alexander

Mass distribution of black holes in low-mass X-ray binaries previously suggested the existence of a $ \sim 2-5M_{\odot} $ mass gap between the most massive neutron stars and the least massive black holes, while some recent evidence appears…

High Energy Astrophysical Phenomena · Physics 2022-11-30 Yong Shao

Mergers of black-hole binaries are expected to release large amounts of energy in the form of gravitational radiation. However, binary evolution models predict merger rates too low to be of observational interest. In this paper we explore…

Astrophysics · Physics 2007-05-23 Simon Portegies Zwart , Stephen McMillan

Black holes are popping up all over the place: in compact binary X-ray sources and GRBs, in quasars, AGNs and the cores of all bulge galaxies, in binary black holes and binary black hole-neutron stars, and maybe even in the LHC! Black holes…

Astrophysics · Physics 2007-11-13 Stuart L. Shapiro

Nuclear star clusters, which fragment into metal-poor stars in situ at the centers of protogalaxies, provide ideal environments for the formation of intermediate-mass black holes with masses $10^3-10^6M_\odot$. We utilize the semianalytic…

High Energy Astrophysical Phenomena · Physics 2023-10-17 Konstantinos Kritos , Emanuele Berti , Joseph Silk

Globular clusters (GCs) are thought to be ancient relics from the early formative phase of galaxies, although their physical origin remains uncertain. GCs are most numerous around massive elliptical galaxies, where they can exhibit a broad…

Astrophysics of Galaxies · Physics 2020-10-13 Jeremy Lim , Emily Wong , Youichi Ohyama , Tom Broadhurst , Elinor Medezinski

The ACS Virgo cluster survey by Cote' and collaborators shows the presence of compact nuclei at the photocenters of many early-type galaxies. It is argued that they are the low-mass counterparts of nuclei hosting Super Massive Black Holes…

Astrophysics · Physics 2007-09-05 R. Capuzzo-Dolcetta , P. Miocchi

Rapid formation of supermassive black holes occurs in dense nuclear star clusters that are initially gas-dominated. Stellar-mass black hole remnants of the most massive cluster sink into the core, where a massive runaway black hole forms as…

High Energy Astrophysical Phenomena · Physics 2024-05-20 Konstantinos Kritos , Emanuele Berti , Joseph Silk

We study the compact binary population in star clusters, focusing on binaries containing black holes, using a self-consistent Monte Carlo treatment of dynamics and full stellar evolution. We find that the black holes experience strong mass…

Solar and Stellar Astrophysics · Physics 2011-04-07 J. M. B. Downing , M. J. Benacquista , M. Giersz , R. Spurzem
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