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

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The delay time distribution of (DTD) of binary neutron stars (BNS) remains poorly constrained, mainly by the small known population of Galactic binaries, the properties of short gamma-ray burst host galaxies, and inferences from $r$-process…

星系天体物理 · 物理学 2019-06-12 Mohammadtaher Safarzadeh , Edo Berger

Gravitational wave (GW) observatories are discovering binary neutron star mergers (BNSMs), and in at least one event we were able to track it down in multiple wavelengths of light, which allowed us to identify the host galaxy. Using a…

星系天体物理 · 物理学 2020-11-06 Kevin Spencer McCarthy , Zheng Zheng , Enrico Ramirez-Ruiz

Recently, the characterisation of binary systems of neutron stars has become central in various fields such as gravitational waves, gamma-ray bursts (GRBs), and the chemical evolution of galaxies. In this work, we explore possible…

星系天体物理 · 物理学 2023-05-03 L. Cavallo , L. Greggio

Binary neutron stars (BNS) mergers are prime sites for $r$-process nucleosynthesis. Their rate determines the chemical evolution of heavy elements in the Milky Way. The merger rate of BNS is a convolution of their birth rate and the…

高能天体物理现象 · 物理学 2019-08-19 Paz Beniamini , Tsvi Piran

In this paper, we investigate the properties of binary neutron stars (BNSs) and their mergers by combining population synthesis models for binary stellar evolution (BSE) with cosmological galaxy formation and evolution models. We obtain…

星系天体物理 · 物理学 2021-10-20 Qingbo Chu , Shenghua Yu , Youjun Lu

We investigate the ability of current and third-generation gravitational wave (GW) detectors to determine the delay time distribution (DTD) of binary neutron stars (BNS) through a direct measurement of the BNS merger rate as a function of…

We investigate the properties of the host galaxies of compact binary mergers across cosmic time, by means of population-synthesis simulations combined with galaxy catalogues from the EAGLE suite. We analyze the merger rate per galaxy of…

星系天体物理 · 物理学 2020-01-08 M. Celeste Artale , Michela Mapelli , Yann Bouffanais , Nicola Giacobbo , Mario Spera , Mario Pasquato

Gravitational waves produced from the merger of binary neutron stars (BNSs) are accompanied by electromagnetic counterparts, making it possible to identify the associated host galaxy. We explore how properties of the host galaxies relate to…

星系天体物理 · 物理学 2020-12-16 Susmita Adhikari , Maya Fishbach , Daniel E. Holz , Risa H. Wechsler , Zhanpei Fang

Six gravitational wave detections have been reported so far, providing crucial insights on the merger rate of double compact objects. We investigate the cosmic merger rate of double neutron stars (DNSs), neutron star-black hole binaries…

高能天体物理现象 · 物理学 2018-07-04 Michela Mapelli , Nicola Giacobbo

Mergers of black hole-neutron star (BHNS) binaries have now been observed by GW detectors with the recent announcement of GW200105 and GW200115. Such observations not only provide confirmation that these systems exist, but will also give…

In Paper I (Safarzadeh & Berger 2019) we studied the determination of the delay time distribution (DTD) of binary neutron stars (BNS) through scaling relations between halo/stellar mass and the star formation history (SFH) of galaxies…

高能天体物理现象 · 物理学 2019-06-12 Mohammadtaher Safarzadeh , Edo Berger , Joel Leja , Joshua S. Speagle

The merging rate of double neutron stars (DNS) has a great impact on many astrophysical issues, including the interpretation of gravitational waves signals, of the short Gamma Ray Bursts (GRBs), and of the chemical properties of stars in…

高能天体物理现象 · 物理学 2020-11-04 Laura Greggio , Paolo Simonetti , Francesca Matteucci

The first neutron star-neutron star merger was detected in by LIGO/Virgo in a galaxy in which the majority of star formation was taking place a long time ago (11 Gyr). LIGO/Virgo estimated that local cosmic NS-NS merger rate is 110-3840…

The merger locations of binary neutron stars (BNSs) encode their galactic kinematics and provide insights into their connection to short gamma-ray bursts (SGRBs). In this work, we use the sample of Galactic BNSs with measured proper motions…

高能天体物理现象 · 物理学 2023-10-24 Nicola Gaspari , Andrew J. Levan , Ashley A. Chrimes , Gijs Nelemans

Following merger, a neutron star (NS) binary can produce roughly one of three different outcomes: (1) a stable NS, (2) a black hole (BH), or (3) a supra-massive, rotationally-supported NS, which then collapses to a BH following angular…

高能天体物理现象 · 物理学 2017-08-02 Anthony L. Piro , Bruno Giacomazzo , Rosalba Perna

In order to investigate the temporal evolution of binary populations in general, double compact star binaries and mergers in particular within a galactic evolution context, a most straightforward method is obviously the implementation of a…

太阳与恒星天体物理 · 物理学 2016-04-20 N. Mennekens , D. Vanbeveren

We derive constraints on the time-averaged event rate of neutron star-black hole (NS-BH) mergers by using estimates of the population-integrated production of heavy rapid neutron-capture (r-process) elements with nuclear mass numbers A >…

太阳与恒星天体物理 · 物理学 2015-06-22 Andreas Bauswein , Ricard Ardevol Pulpillo , H. -Thomas Janka , Stephane Goriely

Making the most of the rapidly increasing population of gravitational-wave detections of black hole (BH) and neutron star (NS) mergers requires comparing observations with population synthesis predictions. In this work we investigate the…

We evaluate the redshift distribution of binary black hole (BBH), black hole - neutron star binary (BHNS) and binary neutron star (BNS) mergers, exploring the main sources of uncertainty: star formation rate (SFR) density, metallicity…

高能天体物理现象 · 物理学 2021-02-12 Filippo Santoliquido , Michela Mapelli , Nicola Giacobbo , Yann Bouffanais , M. Celeste Artale

A binary neutron star (BNS) merger can lead to various outcomes, from indefinitely stable neutron stars, through supramassive (SMNS) or hypermassive (HMNS) neutron stars supported only temporarily against gravity, to black holes formed…

高能天体物理现象 · 物理学 2021-10-27 Paz Beniamini , Wenbin Lu
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