English
Related papers

Related papers: Black Holes in Globular Clusters: A Structural and…

200 papers

The growing number of black hole binary (BHB) mergers detected by the Laser Interferometer Gravitational-Wave Observatory (LIGO) have the potential to enable an unprecedented characterization of the physical processes and astrophysical…

High Energy Astrophysical Phenomena · Physics 2020-10-21 Oliver Anagnostou , Michele Trenti , Andrew Melatos

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…

Solar and Stellar Astrophysics · Physics 2018-09-05 Newlin C. Weatherford , Sourav Chatterjee , Carl L. Rodriguez , Frederic A. Rasio

The growing population of binary black holes (BBHs) observed by gravitational wave detectors is a potential Rosetta stone for understanding their formation channels. Here, we use an upgraded version of our semi-analytic codes {\sc…

High Energy Astrophysical Phenomena · Physics 2022-03-02 Michela Mapelli , Yann Bouffanais , Filippo Santoliquido , Manuel Arca Sedda , M. Celeste Artale

Our current understanding of the stellar initial mass function and massive star evolution suggests that young globular clusters may have formed hundreds to thousands of stellar-mass black holes, the remnants of stars with initial masses…

Astrophysics of Galaxies · Physics 2015-06-22 Meagan Morscher , Bharath Pattabiraman , Carl Rodriguez , Frederic A. Rasio , Stefan Umbreit

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

We present theoretical models for stellar black hole (BH) properties in young, massive star clusters. Using a Monte Carlo code for stellar dynamics, we model realistic star clusters with $N\simeq 5\times10^5$ stars and significant binary…

Astrophysics of Galaxies · Physics 2015-06-17 S. Goswami , P. Kiel , F. A. Rasio

We present results of a series of Monte Carlo simulations investigating the imprint of a central intermediate-mass black hole (IMBH) on the structure of a globular cluster. We investigate the three-dimensional and projected density…

Astrophysics of Galaxies · Physics 2012-07-12 Stefan Umbreit , John M. Fregeau , Sourav Chatterjee , Frederic A. Rasio

We review the current state of dynamical modeling for galaxies in terms of being able to measure both the central black hole mass and stellar orbital structure. Both of these must be known adequately to measure either property. The current…

Astrophysics · Physics 2007-05-23 Karl Gebhardt

A large fraction of galactic nuclei is expected to host supermassive black hole binaries (BHB), likely formed during the early phase of galaxies assembly and merging. In this paper, we use a large set of state-of-art numerical models to…

We explore how the co-evolution of massive black holes (MBHs) and galaxies is affected by environmental effects, addressing in particular MBHs hosted in the central galaxies of clusters (we will refer to these galaxies in general as 'CGs').…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Marta Volonteri , Luca Ciotti

We estimate the rate of gravitational microlensing events of cluster stars due to black holes (BHs) in the globular cluster NGC 5139 ($\omega Cen$). Theory and observations both indicate that $\omega Cen$ may contain thousands of BHs, but…

High Energy Astrophysical Phenomena · Physics 2020-05-12 John Zaris , Doğa Veske , Johan Samsing , Zsuzsa Márka , Imre Bartos , Szabolcs Márka

There is mounting evidence that a significant fraction of Black Holes (BHs) today live in late-type galaxies, including bulge-less galaxies and those hosting pseudobulges, and are significantly undermassive with respect to the scaling…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 F. Shankar , F. Marulli , S. Mathur , M. Bernardi , F. Bournaud

Stellar-remnant black holes (BH) in dense stellar clusters comprise a natural setup to trigger general-relativistic (GR) inspiral and merger of binary black holes (BBH), detectable by the LISA and the LIGO-Virgo, through dynamical…

High Energy Astrophysical Phenomena · Physics 2018-10-10 Sambaran Banerjee

The study of intermediate-mass black holes (IMBHs) is a young and promising field of research. Formed by runaway collisions of massive stars in young and dense stellar clusters, intermediate-mass black holes could still be present in the…

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…

Astrophysics of Galaxies · Physics 2011-02-24 Sambaran Banerjee

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

We present a novel self-consistent theoretical framework to characterize the formation, evolution, and merger sites of dynamically-formed black hole binaries, with a focus on explaining the most massive events observed by the…

In the past decade, much effort was devoted to measure the masses of supermassive black holes in galactic nuclei, to establish the relation between black hole mass and the global/nuclear properties of the host galaxy, and to understand the…

Astrophysics · Physics 2007-05-23 Tim de Zeeuw

The dynamical formation of binary black holes (BBHs) in globular clusters (GCs) may contribute significantly to the observed gravitational wave (GW) merger rate. Furthermore, LISA may detect many BBH sources from GCs at mHz frequencies,…

High Energy Astrophysical Phenomena · Physics 2025-05-13 Zeyuan Xuan , Kyle Kremer , Smadar Naoz

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…

Solar and Stellar Astrophysics · Physics 2015-05-14 Sambaran Banerjee , Holger Baumgardt , Pavel Kroupa