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Related papers: Monte Carlo Simulations of Globular Cluster Evolut…

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In this article, a novel cluster analysis algorithm was employed in the study of polymer coil to globule transition via single chain Monte Carlo simulations. The algorithm, which has been recently applied in Molecular Dynamics simulations…

Soft Condensed Matter · Physics 2013-11-21 T. E. Raptis , Vasilios E. Raptis

A novel way of looking at the evolution of star clusters is presented. With a dynamical temperature, given by the mean kinetic energy of the cluster stars, and a dynamical luminosity, which is defined as the kinetic energy of the stars…

Astrophysics · Physics 2009-11-13 Andreas H. W. Kuepper , Pavel Kroupa , Holger Baumgardt

Binary-single interactions play a crucial role in the evolution of dense stellar systems such as globular clusters. In addition, they are believed to drive black hole (BH) binary mergers in these systems. A subset of binary-single…

Solar and Stellar Astrophysics · Physics 2019-07-01 Adrian S. Hamers , Johan Samsing

We present the results of a study aimed at investigating the effects of dynamical evolution on the spatial distribution and mixing of primordial binary stars in multiple-population globular clusters. Multiple stellar population formation…

Astrophysics of Galaxies · Physics 2018-12-05 Jongsuk Hong , Saahil Patel , Enrico Vesperini , Jeremy J. Webb , Emanuele Dalessandro

All gravitationally bound clusters expand, due to both gas loss from their most massive members and binary heating. All are eventually disrupted tidally, either by passing molecular clouds or the gravitational potential of their host…

Astrophysics of Galaxies · Physics 2014-07-22 Ryan M. O'Leary , Steven W. Stahler , Chung-Pei Ma

The dynamics of a close binary system of globular clusters is considered. It is shown that the star transfer process from one of the components to the other should lead to the decrease of dimension of the first cluster with simultaneous…

Astrophysics · Physics 2009-10-31 G. A. Gurzadyan

We have investigated the effect of the number of primordial binaries on the relationship between the total number of detected binaries within globular cluster and its collision rate. We have used simulated populations of binary stars in…

Astrophysics · Physics 2009-11-10 B. Gendre

We consider the evolution of a binary system interacting due to tidal effects without restriction on the orientation of the orbital, and where significant, spin angular momenta, and orbital eccentricity. We work in the low tidal forcing…

Solar and Stellar Astrophysics · Physics 2020-11-11 P. B. Ivanov , J. C. B. Papaloizou

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 simulate a cluster of 144179 stars including 13107 primordial hard binaries (10% of the total number of single stars and binary centers of mass), using direct integration of the equations of motion of all stars and binaries and…

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

The recent release of the second Gravitational-Wave Transient Catalog (GWTC-2) has increased significantly the number of known GW events, enabling unprecedented constraints on formation models of compact binaries. One pressing question is…

High Energy Astrophysical Phenomena · Physics 2021-04-28 Kaze W. K. Wong , Katelyn Breivik , Kyle Kremer , Thomas Callister

This paper describes an N-body model for the dynamical evolution of the nearby globular cluster M4. The initial conditions, with N = 484710 particles, were generated from a published study of this cluster with a Monte Carlo code. With the…

Astrophysics of Galaxies · Physics 2015-06-22 Douglas C. Heggie

Many of the short-lived radioactive nuclei that were present in the early Solar System can be produced in massive stars. In the first paper in this series (Brinkman et al. 2019), we focused on the production of $^{26}$Al in massive…

Solar and Stellar Astrophysics · Physics 2023-08-02 Hannah E. Brinkman , C. L. Doherty , M. Pignatari , O. R. Pols , M. Lugaro

The dynamics of binary stars provides a unique avenue to gather insight into the study of the structure and dynamics of star clusters and galaxies. In this paper, we present the results of a set of $N$-body simulations aimed at exploring…

Astrophysics of Galaxies · Physics 2023-03-29 Alexander R. Livernois , Enrico Vesperini , Václav Pavlík

We introduce version two of the fast star cluster evolution code Evolve Me A Cluster of StarS (EMACSS). The first version (Alexander & Gieles) assumed that cluster evolution is balanced for the majority of the life-cycle, meaning that the…

Astrophysics of Galaxies · Physics 2015-06-17 Mark Gieles , Poul Alexander , Henny Lamers , Holger Baumgardt

We describe a major upgrade of a Monte Carlo code which has previously been used for many studies of dense star clusters. We outline the steps needed in order to calibrate the results of the new Monte Carlo code against $N$-body simulations…

Astrophysics of Galaxies · Physics 2015-06-03 Mirek Giersz , Douglas C. Heggie , Jarrod Hurley , Arkadiusz Hypki

The paper presents an analysis of properties of populations of blue stragglers (BSs) in evolving globular clusters, based on numerical simulations done with the MOCCA code for various initial globular clusters conditions. We find that…

Astrophysics of Galaxies · Physics 2017-01-18 Arkadiusz Hypki , Mirek Giersz

Gravitational-wave observations have just started probing the properties of black hole binary merger populations. The observation of binaries with very massive black holes and significantly asymmetric masses motivates the study of dense…

High Energy Astrophysical Phenomena · Physics 2024-08-20 Konstantinos Kritos , Vladimir Strokov , Vishal Baibhav , Emanuele Berti

A binary supermassive black hole loses energy via ejection of stars in a galactic nucleus, until emission of gravitational waves becomes strong enough to induce rapid coalescence. Evolution via the gravitational slingshot requires that…

Astrophysics of Galaxies · Physics 2015-09-09 Eugene Vasiliev , Fabio Antonini , David Merritt

We present the first results of the \textsc{Dragon-II} simulations, a suite of 19 $N$-body simulations of star clusters with up to $10^6$ stars, with up to $33\%$ of them initially paired in binaries. In this work, we describe the main…