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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,…

Solar and Stellar Astrophysics · Physics 2025-08-25 Savannah Cary , Michiko Fujii , Long Wang , Ataru Tanikawa

The identification of the first confirmed neutron star - black hole (NS-BH) binary mergers by the LIGO, Virgo and KAGRA collaboration provides the opportunity to investigate the properties of the early sample of confirmed and candidate…

High Energy Astrophysical Phenomena · Physics 2022-01-19 B. P. Gompertz , M. Nicholl , P. Schmidt , G. Pratten , A. Vecchio

We compute and present the distribution in mass of single and binary neutron stars, strange stars, and black holes. The calculations were performed using a stellar population synthesis code. We follow all phases of single and binary…

Astrophysics · Physics 2009-10-31 Krzysztof Belczynski , Tomasz Bulik , Wlodzimierz Kluzniak

We investigate the statistics of isolated recycled pulsars and double neutron star binaries in the Galactic disk. Since recycled pulsars are believed to form through accretion and spinup in close binaries, the isolated objects presumably…

Astrophysics of Galaxies · Physics 2015-05-13 K. Belczynski , D. R. Lorimer , J. P. Ridley , S. J. Curran

The mergers of neutron stars (NSs) and white dwarfs (WDs) could give rise to explosive transients, potentially observable with current and future transient surveys. However, the expected properties and distribution of such events is not…

High Energy Astrophysical Phenomena · Physics 2018-11-07 S. Toonen , H. B. Perets , A. P. Igoshev , E. Michaely , Y. Zenati

We perform a hierarchical Bayesian inference to investigate the population properties of the coalescing compact binaries involving at least one neutron star (NS). With the current observation data, we can not rule out either of the Double…

High Energy Astrophysical Phenomena · Physics 2021-12-22 Yin-Jie Li , Shao-Peng Tang , Yuan-Zhu Wang , Qiang Yuan , Yi-Zhong Fan , Da-Ming Wei

The majority of massive stars are born in binaries, and most unbind upon the first supernova. With precise proper motion surveys such as Gaia, it is possible to trace back the motion of stars in the vicinity of young remnants to search for…

High Energy Astrophysical Phenomena · Physics 2023-04-19 A. A. Chrimes , A. J. Levan , J. J. Eldridge , M. Fraser , N. Gaspari , P. J. Groot , J. D. Lyman , G. Nelemans , E. R. Stanway , K. Wiersema

We present an analytical method for studying the changes of the orbital characteristics of binary systems with circular orbits due to a kick velocity imparted to the newborn neutron star during a supernova explosion (SN). Assuming a…

Astrophysics · Physics 2009-10-28 Vassiliki Kalogera

The properties of the population of merging binary black holes encode some of the uncertain physics of the evolution of massive stars in binaries. The binary black hole merger rate and chirp mass distribution are being measured by…

A subpopulation of neutron stars (NSs), known as central compact objects (CCOs) in supernova remnants, are suspected to be low-field objects basing on $P$-$\dot P$ measurements for three of them. The birth rate of low-field NSs is probably…

High Energy Astrophysical Phenomena · Physics 2012-06-14 S. B. Popov , R. Turolla

We perform a first study of the impact of varying two components of the initial conditions in binary population synthesis of compact binary mergers - the initial mass function, which is made metallicity- and star formation rate-dependent,…

High Energy Astrophysical Phenomena · Physics 2024-11-27 L. M. de Sá , L. S. Rocha , A. Bernardo , R. R. A. Bachega , J. E. Horvath

With our galactic evolutionary code that contains a detailed intermediate mass and massive binary population model, we study the temporal evolution of the galactic population of double neutron star binaries, mixed systems with a neutron…

Solar and Stellar Astrophysics · Physics 2014-05-08 N. Mennekens , D. Vanbeveren

The unprecedented range of second-generation gravitational-wave (GW) observatories calls for refining the predictions of potential sources and detection rates. The coalescence of double compact objects (DCOs)---i.e., neutron star-neutron…

High Energy Astrophysical Phenomena · Physics 2015-07-07 M. Dominik , E. Berti , R. O'Shaughnessy , I. Mandel , K. Belczynski , C. Fryer , D. Holz , T. Bulik , F. Pannarale

Using an updated population synthesis code initially developed by Hurley et al. we modeled the synthetic X-ray binary (XRB) populations for direct comparison with the universal, featureless X-ray luminosity function (XLF) of high mass X-ray…

High Energy Astrophysical Phenomena · Physics 2015-06-17 Zhao-Yu Zuo , Xiang-Dong Li , Qiu-Sheng Gu

The role of compact binary mergers as the main production site of r-process elements is investigated by combining stellar abundances of Eu observed in the Milky Way, galactic chemical evolution (GCE) simulations, binary population synthesis…

Binary population synthesis calculations and associated predictions, especially event rates, are known to depend on a significant number of input model parameters with different degrees of sensitivity. At the same time, for systems with…

Astrophysics · Physics 2008-11-26 R. O'Shaughnessy , V. Kalogera , K. Belczynski

In this paper, the second of a series, we study the stellar dynamical and evolutionary processes leading to the formation of compact binaries containing neutron stars (NSs) in dense globular clusters (GCs). For this study, 70 dense clusters…

Astrophysics · Physics 2009-11-13 N. Ivanova , C. Heinke , F. A. Rasio , K. Belczynski , J. Fregeau

Since the initial discovery of gravitational-waves from merging black holes, the LIGO Scientific Collaboration together with Virgo and KAGRA have published 90 gravitational-wave observations of compact binary mergers in the…

General Relativity and Quantum Cosmology · Physics 2022-09-09 Vera Del Favero

Using the StarTrack binary population synthesis code we investigate the properties of population of compact object binaries. Taking into account the selection effects we calculate the expected properties of the observed binaries.We analyze…

Astrophysics · Physics 2009-11-10 T. Bulik , K. Belczynski

We show how observations of gravitational waves from binary neutron star (BNS) mergers over the next few years can be combined with insights from nuclear physics to obtain useful constraints on the equation of state (EoS) of dense matter,…

High Energy Astrophysical Phenomena · Physics 2019-10-23 Michael McNeil Forbes , Sukanta Bose , Sanjay Reddy , Dake Zhou , Arunava Mukherjee , Soumi De
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