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The cosmic variance on the star formation history may lead to bias to the merger rate density estimation of binary neutron star (BNS) mergers by the compact binary population synthesis. In this paper, we take the advantage of the large…

高能天体物理现象 · 物理学 2024-09-02 Zhiwei Chen , Youjun Lu , Jie Wang , Zhen Jiang , Qingbo Chu , Xianghao Ma

The first detection of gravitational waves from a merging double neutron star (DNS) binary implies a much higher rate of DNS coalescences in the local Universe than typically estimated on theoretical grounds. The recent study by Chruslinska…

高能天体物理现象 · 物理学 2020-02-19 Martyna Chruslinska

We model the formation of black hole-neutron star (BH-NS) binaries via dynamical interactions in globular clusters. We find that in dense, massive clusters, 16-61% of the BH-NS binaries formed by interactions with existing BH binaries will…

高能天体物理现象 · 物理学 2015-06-11 Drew Clausen , Steinn Sigurdsson , David F. Chernoff

Galactic binary neutron stars (BNSs) are a unique laboratory to probe the evolution of BNSs and their progenitors. Here, we use a new version of the population synthesis code SEVN to evolve the population of Galactic BNSs, by modeling the…

We investigate the host galaxies of compact objects merging in the local Universe, by combining the results of binary population-synthesis simulations with the Illustris cosmological box. Double neutron stars (DNSs) merging in the local…

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 $R_{\rm MW}=21^{+28}_{-14}$…

高能天体物理现象 · 物理学 2017-11-15 Martyna Chruslinska , Krzysztof Belczynski , Jakub Klencki , Matthew Benacquista

Mergers of black hole (BH) and neutron star (NS) binaries are expected to be observed by gravitational wave observatories in the coming years. Until now, LIGO has only set an upper limit on this merger rate. BH-NS binaries are expected to…

星系天体物理 · 物理学 2019-05-08 Giacomo Fragione , Abraham Loeb

In this work, we compute rates of merging neutron stars (MNS) in galaxies of different morphological type, as well as the cosmic MNS rate in a unitary volume of the Universe adopting different cosmological scenarios. Our aim is to provide…

星系天体物理 · 物理学 2021-02-01 Marta Molero , Paolo Simonetti , Francesca Matteucci , Massimo della Valle

The first detection of gravitational waves from a neutron star - neutron star (NS-NS) merger, GW170817, and the increasing number of observations of short gamma-ray bursts (SGRBs) have greatly motivated studies of the origins of NS-NS and…

高能天体物理现象 · 物理学 2020-01-15 Claire S. Ye , Wen-fai Fong , Kyle Kremer , Carl L. Rodriguez , Sourav Chatterjee , Giacomo Fragione , Frederic A. Rasio

With the rapid advancements in next-generation ground-based gravitational wave (GW) detectors, it is anticipated that $10^3$-$10^5$ binary neutron star (BNS) mergers per year will be detected, with a significant fraction accompanied by…

高能天体物理现象 · 物理学 2025-12-04 Zhiwei Chen , Youjun Lu , Hao Ma , Qingbo Chu

The merger rate density evolution of binary compact objects and the properties of their host galaxies carry crucial information to understand the sources of gravitational waves. Here, we present galaxyRate, a new code that estimates the…

高能天体物理现象 · 物理学 2022-09-29 Filippo Santoliquido , Michela Mapelli , M. Celeste Artale , Lumen Boco

We show that the inferred merger rate and chirp masses of binary black holes (BBHs) detected by advanced LIGO (aLIGO) can be used to constrain the rate of double neutron star (DNS) and neutron star - black hole (NSBH) mergers in the…

天体物理仪器与方法 · 物理学 2017-10-27 Anuradha Gupta , K. G. Arun , B. S. Sathyaprakash

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…

天体物理学 · 物理学 2015-06-24 V. M. Lipunov , K. A. Postnov , M. E. Prokhorov

The next generation ground-based gravitational wave interferometers will possibly observe mergers of binary black holes (BBHs) and binary neutron stars (BNSs) to redshift $z\gtrsim{}10$ and $z\gtrsim{}2$, respectively. Here, we characterize…

高能天体物理现象 · 物理学 2019-05-08 Michela Mapelli , Nicola Giacobbo , Filippo Santoliquido , M. Celeste Artale

Measuring the merger rate density history of binary neutron stars (BNS) can greatly aid in understanding the history of heavy element formation in the Universe. Currently, second-generation Gravitational Wave (GW) detectors can only measure…

高能天体物理现象 · 物理学 2025-07-08 Yun-Fei Du , Emre Seyit Yorgancioglu , Shu-Xu Yi , Tian-Yong Cao , Shuang-Nan Zhang

Next-generation gravitational wave detectors are expected to detect millions of compact binary mergers across cosmological distances. The features of the mass distribution of these mergers, combined with gravitational wave distance…

宇宙学与河外天体物理 · 物理学 2025-05-30 Soumendra Kishore Roy , Lieke A. C. van Son , Anarya Ray , Will M. Farr

The end state of binary-neutron-star (BNS) mergers can manifest conditions to produce high-energy neutrinos. Inspired by the event GW170817, detected in gravitational waves and in optical/infrared emission, we investigate a scenario in…

高能天体物理现象 · 物理学 2024-12-10 Simone Rossoni , Denise Boncioli , Günter Sigl

The isolated binary evolution model for merging neutron stars (NSs) involves processes such as mass transfer, common-envelope evolution, and natal kicks, all of which are poorly understood. Also, the predicted NS-NS merger rates are…

高能天体物理现象 · 物理学 2019-09-25 Adrian S. Hamers , Todd A. Thompson

Of the seven known double neutron stars (DNS) with precisely measure masses in the Milky Way that will merge within a Hubble time, all but one has a mass ratio, $q$, close to unity. Recently, precise measurements of three post-Keplerian…

高能天体物理现象 · 物理学 2020-07-14 Jeff J. Andrews

To test whether the short GRB rates, redshift distribution and host galaxies are consistent with current theoretical predictions, we use avery large database of population synthesis calculations to examine BH-NS and NS-NS merger rates in…

天体物理学 · 物理学 2010-11-11 R. O'Shaughnessy , V. Kalogera , K. Belczynski