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相关论文: Compact binaries in globular clusters

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In this paper, the first of a series, we study the stellar dynamical and evolutionary processes leading to the formation of compact binaries containing white dwarfs in dense globular clusters. We examine the processes leading to the…

天体物理学 · 物理学 2009-11-11 N. Ivanova , C. O. Heinke , F. A. Rasio , R. E. Taam , K. Belczynski , J. Fregeau

The population of compact binaries in dense stellar systems is affected strongly by frequent dynamical interactions between stars and their interplay with the stellar evolution. In this contribution, we consider these effects on binaries…

天体物理学 · 物理学 2007-05-23 N. Ivanova , F. A. Rasio

We summarize the results of recent theoretical work on the dynamical evolution of globular clusters containing primordial binaries. Even a very small initial binary fraction (e.g., 10%) can play a key role in supporting a cluster against…

天体物理学 · 物理学 2015-05-20 Frederic A. Rasio , John M. Fregeau , Kriten J. Joshi

In contrast to the field, the binaries in dense stellar systems are frequently not primordial, and could be either dynamically formed or significantly altered from their primordial states. Destruction and formation of binaries occur in…

太阳与恒星天体物理 · 物理学 2015-05-27 Natalia Ivanova

We investigate the dynamical formation and evolution of binaries containing neutron stars in dense globular clusters. Our numerical simulations combine a simple Monte Carlo prescription for stellar dynamics, a sophisticated binary…

天体物理学 · 物理学 2007-05-23 Natalia Ivanova , John M. Fregeau , Frederic A. Rasio

We model the dynamics of test binaries in isotropic, multi-mass models of galactic globular clusters. The evolution of binary orbits through the cluster potentials is modeled, including second order diffusion terms, and probabilities for…

天体物理学 · 物理学 2008-11-26 Steinn Sigurdsson , E. S. Phinney

Galactic globular clusters are old, dense star systems typically containing 10\super{4}--10\super{7} stars. As an old population of stars, globular clusters contain many collapsed and degenerate objects. As a dense population of stars,…

太阳与恒星天体物理 · 物理学 2015-05-30 Matthew J. Benacquista , Jonathan M. B. Downing

The galactic population of globular clusters are old, dense star systems, with a typical cluster containing $10^4 - 10^6$ stars. As an old population of stars, globular clusters contain many collapsed and degenerate objects. As a dense…

天体物理学 · 物理学 2016-10-19 Matthew Benacquista

The presence of multiple stellar populations in globular clusters leads to a complex dynamical environment that significantly influences the evolution of binary stars, which in turn impacts the evolution of the cluster itself. For this…

星系天体物理 · 物理学 2026-02-10 J. Bruce , E. Vesperini , A. Askar , E. Bortolan , M. Giersz , J. Hong , A. Hypki , A. P. Milone

We use the results of realistic N-body simulations to investigate the appearance of the white dwarf population in dense star clusters. We show that the presence of a substantial binary population in a star cluster, and the interaction of…

天体物理学 · 物理学 2009-11-07 Jarrod R. Hurley , Michael M. Shara

We know from observations that globular clusters are very efficient catalysts in forming unusual short-period binary systems or their offspring, such as low-mass X-ray binaries (LMXBs; neutron stars accreting matter from low-mass stellar…

In dense stellar systems, frequent dynamical interactions between binaries lead to the formation of multiple systems. In this contribution we discuss the dynamical formation of hierarchically stable triples: the formation rate, main…

天体物理学 · 物理学 2009-09-29 Natalia Ivanova

We study the evolution of binary stars in globular clusters using a new Monte Carlo approach combining a population synthesis code (StarTrack), and a simple treatment of dynamical interactions in the dense cluster core using a new tool for…

天体物理学 · 物理学 2009-11-10 N. Ivanova , K. Belczynski , J. M. Fregeau , F. A. Rasio

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…

太阳与恒星天体物理 · 物理学 2011-04-07 J. M. B. Downing , M. J. Benacquista , M. Giersz , R. Spurzem

We study the evolution of binary stars in globular clusters using a novel approach combining a state-of-the-art population synthesis code with a simple treatment of dynamical interactions in the dense cluster core. We find that the…

天体物理学 · 物理学 2007-05-23 N. Ivanova , K. Belczynski , J. M. Fregeau , F. A. Rasio

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…

高能天体物理现象 · 物理学 2024-08-20 Konstantinos Kritos , Vladimir Strokov , Vishal Baibhav , Emanuele Berti

Dynamical interactions that take place between objects in dense stellar systems lead to frequent formation of exotic stellar objects, unusual binaries, and systems of higher multiplicity. They are most important for the formation of…

太阳与恒星天体物理 · 物理学 2017-06-26 Natalia Ivanova

Compact Galactic binaries where at least one member is a white dwarf or neutron star constitute the majority of individually detectable sources for future low-frequency space-based gravitational-wave (GW) observatories; they also form an…

星系天体物理 · 物理学 2015-06-03 Samaya Nissanke , Michele Vallisneri , Gijs Nelemans , Thomas A. Prince

Studying compact-object binary mergers in star clusters is crucial for understanding stellar evolution and dynamical interactions in galaxies. Open clusters in particular are more abundant over cosmic time than globular clusters, however,…

太阳与恒星天体物理 · 物理学 2025-08-25 Savannah Cary , Michiko Fujii , Long Wang , Ataru Tanikawa

Context: Field stars are not always single stars, but can often be found in bound double systems. Since binary frequencies in the birth places of stars, young embedded clusters, are sometimes even higher than on average the question arises…

星系天体物理 · 物理学 2015-05-27 Thomas Kaczmarek , Christoph Olczak , Susanne Pfalzner
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