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Related papers: Binary neutron star populations in the Milky Way

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The formation histories of compact binary mergers, especially stellar-mass binary-black hole mergers, have recently come under increased scrutiny and revision. In this paper we revisit the question of the dominant formation channel and…

High Energy Astrophysical Phenomena · Physics 2023-08-28 Monica Gallegos-Garcia , Christopher P L Berry , Vicky Kalogera

The possible formation histories of neutron star binaries remain unresolved by current gravitational-wave catalogs. The detection of an eccentric binary system could be vital in constraining compact binary formation models. We present the…

High Energy Astrophysical Phenomena · Physics 2025-05-20 Rahul Dhurkunde , Alexander H. Nitz

Binary black hole mergers encode information about their environment and the astrophysical processes that led to their formation. Measuring the redshift dependence of their merger rate will help probe the formation and evolution of galaxies…

High Energy Astrophysical Phenomena · Physics 2020-07-01 Y. Yang , I. Bartos , Z. Haiman , B. Kocsis , S. Márka , H. Tagawa

Mergers of binary neutron stars (BNSs) emit signals in both the gravitational-wave (GW) and electromagnetic (EM) spectra. Famously, the 2017 multi-messenger observation of GW170817 led to scientific discoveries across cosmology, nuclear…

The mergers of binary neutron stars (BNSs) and neutron star-black holes (NSBHs) binaries have long been linked to short-duration gamma-ray bursts (SGRBs). However, despite their stellar progenitors, SGRBs are often found outside the stellar…

High Energy Astrophysical Phenomena · Physics 2025-07-02 N. Gaspari , A. J. Levan , A. A. Chrimes , A. E. Nugent

Context: Subdwarf B stars (sdBs) play a crucial role in stellar evolution, asteroseismology, and far-UV radiation of early-type galaxies, and have been intensively studied with observation and theory. It has theoretically been predicted…

Solar and Stellar Astrophysics · Physics 2020-02-26 You Wu , Xuefei Chen , Hailiang Chen , Zhenwei Li , Zhanwen Han

Symbiotic X-ray binaries (SyXBs) comprise a rare class of low-mass X-ray binaries. We study the Galactic SyXBs, which we consider as detached binaries composed of low-mass giants and wind-fed neutron star companions, by simulation of the…

Solar and Stellar Astrophysics · Physics 2015-06-05 G. -L. Lu , C. -H. Zhu , K. A. Postnov , L. R. Yungelson , A. G. Kuranov , N. Wang

We revisit double neutron star (DNS) formation in the classical binary evolution scenario in light of the recent LIGO/Virgo DNS detection (GW170817). The observationally estimated Galactic DNS merger rate of $R_{\rm MW}=21^{+28}_{-14}$…

High Energy Astrophysical Phenomena · Physics 2017-11-15 Martyna Chruslinska , Krzysztof Belczynski , Jakub Klencki , Matthew Benacquista

We present a study of the merger of six different known galactic systems of binary neutron stars (BNS) of unequal mass with a mass ratio between $0.75$ and $0.99$. Specifically, these systems are J1756-2251, J0737-3039A, J1906+0746,…

General Relativity and Quantum Cosmology · Physics 2017-01-18 Alessandra Feo , Roberto De Pietri , Francesco Maione , Frank Löffler

We explore the possibility of inferring the properties of the Galactic neutron star population through machine learning. In particular, in this paper we focus on their dynamical characteristics and show that an artificial neural network is…

High Energy Astrophysical Phenomena · Physics 2021-08-11 Michele Ronchi , Vanessa Graber , Alberto Garcia-Garcia , Jose A. Pons , Nanda Rea

We present numerical simulations of binary neutron star mergers, comparing irrotational binaries to binaries of NSs rotating aligned to the orbital angular momentum. For the first time, we study spinning BNSs employing nuclear physics…

General Relativity and Quantum Cosmology · Physics 2015-04-10 Wolfgang Kastaun , Filippo Galeazzi

We revisit the population properties of neutron star-black hole (NSBH) mergers using low-mass compact binary coalescences reported through GWTC-4. Employing pyEFPE, an inspiral-only waveform model that captures both orbital eccentricity and…

High Energy Astrophysical Phenomena · Physics 2026-03-25 Gonzalo Morras , Geraint Pratten , Patricia Schmidt

The observed samples of supernovae (SN) and double compact objects (DCOs) provide several critical constraints on population-synthesis models: the parameters of these models must be carefully chosen to reproduce, among other factors, (i)…

Astrophysics · Physics 2010-11-11 R. O'Shaughnessy , C. Kim , V. Kalogera , K. Belczynski

We present our models of the effect of binaries on high-resolution spectroscopic surveys. We want to determine how many binary stars will be observed, whether unresolved binaries will contaminate measurements of chemical abundances, and how…

Solar and Stellar Astrophysics · Physics 2018-08-22 Edita Stonkute , Ross P. Church , Sofia Feltzing , Jennifer A. Johnson

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

Double neutron star (DNS) systems represent extreme physical objects and the endpoint of an exotic journey of stellar evolution and binary interactions. Large numbers of DNS systems and their mergers are anticipated to be discovered using…

Galactic binary pulsars with different companion types (OB-star, white dwarf (WD), neutron star (NS), black hole (BH), or planet) assuming various phenomenological distributions for kick velocities of newborn NS are studied. The merging…

Astrophysics · Physics 2015-06-24 V. M. Lipunov , K. A. Postnov , M. E. Prokhorov

We use the rapid binary stellar evolution code BINARY_C to estimate the rate of merging neutron stars with numerous combinations of envelope ejection efficiency and natal kick dispersion. We find a peak in the local rate of merging neutron…

High Energy Astrophysical Phenomena · Physics 2023-04-28 Alexander M. Tanaka , Avishai Gilkis , Robert G. Izzard , Christopher A. Tout

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

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
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