Evolution of binary stars in multiple-population globular clusters – II. Compact binaries [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 We present the results of a survey of N-body simulations aimed at exploring the evolution of compact binaries in multiple-population globular clusters.We show that as a consequence of the initial differences in the structural properties of the first-generation (FG) and the second-generation (SG) populations and the effects of dynamical processes on ...
Hong, Jongsuk +5 more
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Formation of mass gap compact object and black hole binary from Population III stars [PDF]
Progress of Theoretical and Experimental Physics, 2020 We performed population synthesis simulations of Population III binary stars with Maxwellian kick velocity distribution when MGCOs (mass gap compact objects, with mass $2$–$5\,M_{\odot}$) are formed.
T. Kinugawa, Takashi Nakamura, H. Nakano
semanticscholar +1 more source
Binary boson stars: Merger dynamics and formation of rotating remnant stars [PDF]
Physical Review D, 2023 Scalar boson stars have attracted attention as simple models for exploring the nonlinear dynamics of a large class of ultra compact and black hole mimicking objects. Here, we study the impact of interactions in the scalar matter making up these stars. In
N. Siemonsen, W. East
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Analytic properties of the electromagnetic field of binary compact stars and electromagnetic precursors to gravitational waves [PDF]
Progress of Theoretical and Experimental Physics, 2020 We analytically study the properties of the electromagnetic field in the vacuum around close binary compact stars containing at least one neutron star.
Tomoki Wada, M. Shibata, K. Ioka
semanticscholar +1 more source
Dark stars and gravitational waves: Topical review
Results in Physics, 2023 Motivated by recent observations of compact binary gravitational wave events reported by LIGO/Virgo/KAGRA, we review the basics of dark and hybrid stars11 In this review “hybrid stars” means “dark-matter admixed stars”, though this term usually refers to
Kilar Zhang +4 more
doaj +1 more source
Which black hole formed first? Mass-ratio reversal in massive binary stars from gravitational-wave data [PDF]
Monthly notices of the Royal Astronomical Society, 2022 Population inference of gravitational-wave catalogs is a useful tool to translate observations of black hole mergers into constraints on compact-binary formation.
M. Mould +3 more
semanticscholar +1 more source
Post-merger Gravitational-wave Signal from Neutron-star Binaries: A New Look at an Old Problem
The Astrophysical Journal, 2023 The spectral properties of the post-merger gravitational-wave signal from a binary of neutron stars encodes a variety of information about the features of the system and of the equation of state describing matter around and above nuclear saturation ...
Konrad Topolski +2 more
doaj +1 more source
Heavy baryons in compact stars [PDF]
Progress in Particle and Nuclear Physics, 2022 We review the physics of hyperons and $\Delta$-resonances in dense matter in compact stars. The covariant density functional approach to the equation of state and composition of dense nuclear matter in the mean-field Hartree and Hartree-Fock ...
A. Sedrakian, Jia-Jie Li, F. Weber
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Irrotational binary neutron stars in quasiequilibrium [PDF]
, 1999 We report on numerical results from an independent formalism to describe the quasi-equilibrium structure of nonsynchronous binary neutron stars in general relativity.
D. Lai +25 more
core +2 more sources
A generative model for Gaia astrometric orbit catalogs: selection functions for binary stars, giant planets, and compact object companions [PDF]
The Open Journal of AstrophysicsAstrometry from {} DR3 has produced a sample of $$170,000 Keplerian orbital solutions, with many more anticipated in the next few years. These data have enormous potential to constrain the population of binary stars, giant planets, and compact objects in
K. El-Badry +6 more
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