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Most gravitational-wave signals from binary neutron star coalescences are too weak to be individually resolved with current detectors. We demonstrate how to extract a population of sub-threshold binary neutron star signals using Bayesian…

General Relativity and Quantum Cosmology · Physics 2019-08-28 Francisco Hernandez Vivanco , Rory Smith , Eric Thrane , Paul D. Lasky

We investigate pre-merger coherent radio emission from neutron star mergers arising due to the magnetospheric interaction between compact objects. We consider two plausible radiation mechanisms, and show that if one neutron star has a…

High Energy Astrophysical Phenomena · Physics 2022-12-21 A. J. Cooper , O. Gupta , Z. Wadiasingh , R. A. M. J. Wijers , O. M. Boersma , I. Andreoni , A. Rowlinson , K. Gourdji

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 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…

High Energy Astrophysical Phenomena · Physics 2022-07-22 Yacheng Kang , Chang Liu , Lijing Shao

We reassess the capacity for multimessenger inference of AT2017gfo/GW170817 using both kilonova and gravitational wave emission within the context of a recent simulation-based surrogate model for kilonova emission. Independent of the…

Stellar mass black hole binaries have individual masses between 10-80 solar masses. These systems may emit gravitational waves at frequencies detectable at Megaparsec distances by space-based gravitational wave observatories. In a previous…

General Relativity and Quantum Cosmology · Physics 2015-06-11 Matthew Benacquista , Jesus Hinojosa , Alberto Mata , Krzysztof Belczynski

In light of the discovery of the first-ever double pulsar system, PSR J0737-3039, we re-examine an earlier proposal to directly detect gravity waves from neutron stars, which was predicated on a hypothetical system almost identical to the…

Astrophysics · Physics 2008-05-27 Redouane Al Fakir , William G. Unruh

Observations of neutron-star mergers based on distinct messengers, including gravitational waves and electromagnetic signals, can be used to study the behavior of matter denser than an atomic nucleus, and to measure the expansion rate of…

High Energy Astrophysical Phenomena · Physics 2020-12-22 Tim Dietrich , Michael W. Coughlin , Peter T. H. Pang , Mattia Bulla , Jack Heinzel , Lina Issa , Ingo Tews , Sarah Antier

The first, long awaited, detection of a gravitational wave (GW) signal from the merger of a binary neutron-star (NS-NS) system was finally achieved (GW$\,$170817), and was also accompanied by an electromagnetic counterpart -- the…

High Energy Astrophysical Phenomena · Physics 2017-12-06 Jonathan Granot , Dafne Guetta , Ramandeep Gill

The first detection of a binary neutron star merger through gravitational waves and photons marked the dawn of multi-messenger astronomy with gravitational waves, and it greatly increased our insight in different fields of astrophysics and…

High Energy Astrophysical Phenomena · Physics 2021-07-01 Stefano Ascenzi , Gor Oganesyan , Marica Branchesi , Riccardo Ciolfi

Black hole neutron star (BHNS) mergers have recently been detected through their gravitational-wave (GW) emission. BHNS mergers could also produce electromagnetic (EM) emission as a short gamma-ray burst (sGRB), and/or an sGRB afterglow…

High Energy Astrophysical Phenomena · Physics 2022-09-20 Oliver M. Boersma , Joeri van Leeuwen

Third-generation gravitational wave (GW) observatories such as the Einstein Telescope (ET) and Cosmic Explorer (CE) will detect hundreds of thousands of binary neutron star (BNS) mergers, reaching redshifts beyond $z\sim3$. To fully exploit…

High Energy Astrophysical Phenomena · Physics 2026-01-14 S. Bisero , S. D. Vergani , E. Loffredo , M. Branchesi , N. Hazra , U. Dupletsa , R. I. Anderson

The vast collecting area of the Square Kilometre Array (SKA), harnessed by sensitive receivers, flexible digital electronics and increased computational capacity, could permit the most sensitive and exhaustive search for…

The first detection of gravitational waves from a binary neutron star merger (GW170817) and the accompanying electromagnetic emission has impressively advanced our understanding of the merger process and has set some first constraints on…

General Relativity and Quantum Cosmology · Physics 2020-02-05 Andreas Bauswein , Nikolaos Stergioulas

On 2017 August 17 a binary neutron star coalescence candidate (later designated GW170817) with merger time 12:41:04 UTC was observed through gravitational waves by the Advanced LIGO and Advanced Virgo detectors. The Fermi Gamma-ray Burst…

High Energy Astrophysical Phenomena · Physics 2017-10-25 LIGO Scientific Collaboration , Virgo Collaboration , Fermi GBM , INTEGRAL , IceCube Collaboration , AstroSat Cadmium Zinc Telluride Imager Team , IPN Collaboration , The Insight-Hxmt Collaboration , ANTARES Collaboration , The Swift Collaboration , AGILE Team , The 1M2H Team , The Dark Energy Camera GW-EM Collaboration , the DES Collaboration , The DLT40 Collaboration , GRAWITA , : , GRAvitational Wave Inaf TeAm , The Fermi Large Area Telescope Collaboration , ATCA , : , Australia Telescope Compact Array , ASKAP , : , Australian SKA Pathfinder , Las Cumbres Observatory Group , OzGrav , DWF , AST3 , CAASTRO Collaborations , The VINROUGE Collaboration , MASTER Collaboration , J-GEM , GROWTH , JAGWAR , Caltech- NRAO , TTU-NRAO , NuSTAR Collaborations , Pan-STARRS , The MAXI Team , TZAC Consortium , KU Collaboration , Nordic Optical Telescope , ePESSTO , GROND , Texas Tech University , SALT Group , TOROS , : , Transient Robotic Observatory of the South Collaboration , The BOOTES Collaboration , MWA , : , Murchison Widefield Array , The CALET Collaboration , IKI-GW Follow-up Collaboration , H. E. S. S. Collaboration , LOFAR Collaboration , LWA , : , Long Wavelength Array , HAWC Collaboration , The Pierre Auger Collaboration , ALMA Collaboration , Euro VLBI Team , Pi of the Sky Collaboration , The Chandra Team at McGill University , DFN , : , Desert Fireball Network , ATLAS , High Time Resolution Universe Survey , RIMAS , RATIR , SKA South Africa/MeerKAT

GHz radio astronomy has played a fundamental role in the recent dazzling discovery of GW170817, a neutron star (NS)-NS merger observed in both gravitational waves (GWs) and light at all wavelengths. Here we show how the expected progress in…

In this letter we begin the study of visible dark sector signals coming from binary neutron star mergers. We focus on dark photons emitted in the 10 ms - 1 s after the merger, and show how they can lead to bright transient gamma-ray…

High Energy Physics - Phenomenology · Physics 2022-10-19 Melissa D. Diamond , Gustavo Marques-Tavares

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

Binary neutron-star (BNS) mergers are accompanied by multi-messenger emissions, including gravitational wave (GW), neutrino, and electromagnetic signals. Some fraction of BNS mergers may result in a rapidly spinning magnetar as a remnant,…

High Energy Astrophysical Phenomena · Physics 2025-08-22 Mainak Mukhopadhyay , Shigeo S. Kimura , Brian D. Metzger

We present the first application of deep learning forecasting for binary neutron stars, neutron star - black hole systems, and binary black hole mergers that span an eccentricity range e <= 0.9. We train neural networks that describe these…

General Relativity and Quantum Cosmology · Physics 2021-10-19 Wei Wei , E. A. Huerta , Mengshen Yun , Nicholas Loutrel , Md Arif Shaikh , Prayush Kumar , Roland Haas , Volodymyr Kindratenko
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