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相关论文: Where binary neutron stars merge: predictions from…

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Gravitational-wave detectors are now making it possible to investigate how the merger rate of binary black holes (BBHs) evolves with redshift. In this study, we examine whether the BBH merger rate of isolated binaries deviates from a scaled…

高能天体物理现象 · 物理学 2024-05-06 Adam Boesky , Floor S. Broekgaarden , Edo Berger

Neutron star mergers (NSMs) are promising astrophysical sites for the rapid neutron-capture ("$r$-") process, but can their integrated yields explain the majority of heavy-element material in the Galaxy? One method to address this question…

Pre-merger localization of binary neutron stars (BNSs) is one of the most important scientific goals for the third generation (3G) gravitational wave (GW) detectors. It will enable the electromagnetic observation of the whole process of BNS…

广义相对论与量子宇宙学 · 物理学 2024-01-02 Qian Hu , John Veitch

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,…

广义相对论与量子宇宙学 · 物理学 2017-01-18 Alessandra Feo , Roberto De Pietri , Francesco Maione , Frank Löffler

While it is now known that double neutron star binary systems (DNSs) are copious producers of heavy elements, there remains much speculation about whether they are the sole or even principal site of rapid neutron-capture (r-process)…

高能天体物理现象 · 物理学 2023-10-09 Erika M. Holmbeck , Jeff J. Andrews

We perform a comparative analysis of nucleosynthesis yields from binary neutron star (BNS) mergers, black hole-neutron star (BHNS) mergers, and core-collapse supernovae (CCSNe) with the goal of determining which are the most dominant…

高能天体物理现象 · 物理学 2023-08-30 Nick Ekanger , Mukul Bhattacharya , Shunsaku Horiuchi

Young neutron stars (NSs) born in core-collapse explosions are promising candidates for the central engines of fast radio bursts (FRBs), since the first localized repeating burst FRB 121102 happens in a star forming dwarf galaxy, which is…

高能天体物理现象 · 物理学 2020-03-11 F. Y. Wang , Y. Y. Wang , Yuan-Pei Yang , Y. W. Yu , Z. Y. Zuo , Z. G. Dai

We study the dynamical signatures of black hole (BH) and neutron star (NS) binary mergers via Lidov-Kozai oscillations induced by tertiary companions in hierarchical triple systems. For each type of binaries (BH-BH and BH-NS), we explore a…

高能天体物理现象 · 物理学 2019-08-14 Bin Liu , Dong Lai , Yi-Han Wang

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…

高能天体物理现象 · 物理学 2025-07-02 N. Gaspari , A. J. Levan , A. A. Chrimes , A. E. Nugent

Binary neutron stars (BNSs) are among the most interesting sources for multimessenger studies. A number of recently discovered BNSs in the Milky Way by radio telescopes have added new information to the parameter distribution of the…

高能天体物理现象 · 物理学 2025-09-26 Zhiwei Chen , Jihui Zhang , Youjun Lu , Jifeng Liu , Changwen Zeng

Black hole-neutron star (BHNS) binaries are expected to be among the leading sources of gravitational waves observable by ground-based detectors, and may be the progenitors of short-hard gamma ray bursts (SGRBs) as well. Here, we discuss…

It is proposed that one-off fast radio burst (FRB) with periodic structures may be produced during the inspiral phase of a binary neutron-star (BNS) merger. In this paper, we study the event rate of such kind of FRB. We first investigate…

高能天体物理现象 · 物理学 2023-08-16 Zhi-Lin Chen , Rui-Chong Hu , Da-Bin Lin , En-Wei Liang

We study dynamical capture binary black hole-neutron star (BH-NS) mergers focusing on the effects of the neutron star spin. These events may arise in dense stellar regions, such as globular clusters, where the majority of neutron stars are…

高能天体物理现象 · 物理学 2015-06-29 William E. East , Vasileios Paschalidis , Frans Pretorius

We present fully GRMHD simulations of the merger of binary neutron star (BNS) systems. We consider BNSs producing a hypermassive neutron star (HMNS) that collapses to a spinning black hole (BH) surrounded by a magnetized accretion disk in a…

高能天体物理现象 · 物理学 2016-10-31 Takumu Kawamura , Bruno Giacomazzo , Wolfgang Kastaun , Riccardo Ciolfi , Andrea Endrizzi , Luca Baiotti , Rosalba Perna

We investigate the prospects of electromagnetic follow-up observations for binary neutron star (BNS) mergers, with the help of early warnings from decihertz gravitational-wave (GW) observatories, B-DECIGO and DO-Optimal. Extending the…

高能天体物理现象 · 物理学 2022-07-22 Yacheng Kang , Chang Liu , Lijing Shao

As the sensitivity of the international gravitational wave detector network increases, observing binary neutron star signals will become more common. Moreover, since these signals will be louder, the chances of detecting them before their…

广义相对论与量子宇宙学 · 物理学 2024-07-16 Wouter van Straalen , Alex Kolmus , Justin Janquart , Chris Van Den Broeck

We perform a systematic study of merging black hole (BH) binaries with compact star (CS) companions, including black hole--white dwarf (BH--WD), black hole--neutron star (BH--NS) and black hole--black hole (BH--BH) systems. Previous studies…

高能天体物理现象 · 物理学 2021-10-27 Yong Shao , Xiang-Dong Li

We use a 3-D relativistic SPH (Smoothed Particle Hydrodynamics) code to study mergers of black hole -- neutron star (BH--NS) binary systems with low mass ratios, adopting $M_{NS}/M_{BH} \simeq 0.1$ as a representative case. The outcome of…

天体物理学 · 物理学 2009-11-13 Emmanouela Rantsiou , Shiho Kobayashi , Pablo Laguna , Frederic Rasio

In this work we study the formation of the first two black hole-neutron star (BHNS) mergers detected in gravitational waves (GW200115 and GW200105) from massive stars in wide isolated binary systems - the isolated binary evolution channel.…

高能天体物理现象 · 物理学 2021-10-13 Floor S. Broekgaarden , Edo Berger

The connection between the binary black hole (BBH) mergers observed by LIGO-Virgo-KAGRA (LVK) and their stellar progenitors remains uncertain. Specifically, the fraction $\epsilon$ of stellar mass that ends up in BBH mergers and the delay…

高能天体物理现象 · 物理学 2024-03-27 Aryanna Schiebelbein-Zwack , Maya Fishbach