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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…

Astrophysics of Galaxies · Physics 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…

Astrophysics of Galaxies · Physics 2020-11-06 Kevin Spencer McCarthy , Zheng Zheng , Enrico Ramirez-Ruiz

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…

High Energy Astrophysical Phenomena · Physics 2019-06-12 Mohammadtaher Safarzadeh , Edo Berger , Joel Leja , Joshua S. Speagle

The initial separation of massive star binaries sets the timescale over which their compact remnants merge through the emission of gravitational waves. We show that the delay time distribution (DTD) of binary neutron stars or black holes…

High Energy Astrophysical Phenomena · Physics 2020-10-07 Mohammadtaher Safarzadeh , Sylvia Biscoveanu , Abraham Loeb

Gravitational waves (GWs) directly measure the luminosity distance to the merger, which, when combined with an independent measurement of the source's redshift, provides a novel probe of cosmology. The proposed next generation of…

Cosmology and Nongalactic Astrophysics · Physics 2021-08-11 Christine Ye , Maya Fishbach

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…

Astrophysics of Galaxies · Physics 2023-05-03 L. Cavallo , L. Greggio

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…

High Energy Astrophysical Phenomena · Physics 2025-07-08 Yun-Fei Du , Emre Seyit Yorgancioglu , Shu-Xu Yi , Tian-Yong Cao , Shuang-Nan Zhang

The rate and location of Binary Neutron Star (BNS) mergers are determined by a combination of the star formation history and the Delay Time Distribution (DTD) function. In this paper, we couple the star formation rate histories (SFRHs) from…

High Energy Astrophysical Phenomena · Physics 2021-03-31 Jonah C. Rose , Paul Torrey , K. H. Lee , I. Bartos

The merging of two neutron stars (MNS) is thought to be the source of short gamma-ray bursts (SGRB) and gravitational wave transients, as well as the main production site of r-process elements like Eu. We have derived a new delay time…

High Energy Astrophysical Phenomena · Physics 2019-04-17 Paolo Simonetti , Francesca Matteucci , Laura Greggio , Gabriele Cescutti

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…

High Energy Astrophysical Phenomena · Physics 2019-08-19 Paz Beniamini , Tsvi Piran

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…

Cosmology and Nongalactic Astrophysics · Physics 2025-05-30 Soumendra Kishore Roy , Lieke A. C. van Son , Anarya Ray , Will M. Farr

The formation channels of binary neutron stars (BNSs) remain uncertain. The detection of GW190425 by LIGO/Virgo/KAGRA (LVK) suggests a subpopulation of massive BNSs, possibly formed through unstable "case BB" mass transfer with short merger…

High Energy Astrophysical Phenomena · Physics 2025-12-03 Alexandre Toubiana , Irina Dvorkin

The Einstein Telescope (ET) is a proposed third-generation, wide-band gravitational wave (GW) detector which will have an improved detection sensitivity in low frequencies, leading to a longer observation time in the detection band and…

High Energy Astrophysical Phenomena · Physics 2025-05-27 Neha Singh , Tomasz Bulik , Aleksandra Olejak

The gravitational-wave (GW) events, produced by the coalescence of binary neutron-stars (BNS), can be treated as the standard sirens to probe the expansion history of the Universe, if their redshifts could be determined from the…

High Energy Astrophysical Phenomena · Physics 2021-08-04 Jiming Yu , Haoran Song , Shunke Ai , He Gao , Fayin Wang , Yu Wang , Youjun Lu , Wenjuan Fang , Wen Zhao

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…

General Relativity and Quantum Cosmology · Physics 2024-01-02 Qian Hu , John Veitch

We investigated the detection rates and early warning parameters of binary neutron star (BNS) populations with decihertz gravitational-wave observatories in a realistic detecting strategy. Assuming 4 years' operation of B-DECIGO, we based…

High Energy Astrophysical Phenomena · Physics 2022-07-28 Chang Liu , Yacheng Kang , Lijing Shao

We explore the prospects for constraining cosmology using gravitational-wave (GW) observations of neutron-star binaries by the proposed Einstein Telescope (ET), exploiting the narrowness of the neutron-star mass function. Double…

Cosmology and Nongalactic Astrophysics · Physics 2012-07-06 Stephen R. Taylor , Jonathan R. Gair

The first observation of a gravitational wave (GW) and a short gamma-ray burst (sGRB) emitted by the same binary neutron star (BNS) merger officially opened the field of GW multimessenger astronomy. In this paper, we define and address…

Cosmology and Nongalactic Astrophysics · Physics 2025-03-07 Leonardo Iampieri , Simone Mastrogiovanni , Francesco Pannarale

We present a study aimed at quantifying the detectability of radio counterparts of binary neutron star (BNS) mergers with total masses $\lesssim 3$\,M$_{\odot}$, which may form neutron star (NS) remnants. We focus on mergers localized by…

High Energy Astrophysical Phenomena · Physics 2025-07-01 Kara Merfeld , Alessandra Corsi

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…

High Energy Astrophysical Phenomena · Physics 2020-11-04 Laura Greggio , Paolo Simonetti , Francesca Matteucci
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