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We present a Bayesian framework for joint and coherent analyses of multimessenger binary neutron star signals. The method, implemented in our bajes infrastructure, incorporates a joint likelihood for multiple datasets, support for various…

High Energy Astrophysical Phenomena · Physics 2024-09-04 Matteo Breschi , Rossella Gamba , Gregorio Carullo , Daniel Godzieba , Sebastiano Bernuzzi , Albino Perego , David Radice

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…

We present an effective, low-dimensionality frequency-domain template for the gravitational wave signal from the stellar remnants from binary neutron star coalescence. A principal component decomposition of a suite of numerical simulations…

High Energy Astrophysical Phenomena · Physics 2016-04-13 James Alexander Clark , Andreas Bauswein , Nikolaos Stergioulas , Deirdre Shoemaker

Binary neutron star (BNS) mergers are one of the proposed origins for both repeating and non-repeating fast radio bursts (FRBs), which associates FRBs with gravitational waves and short gamma-ray bursts (GRBs). In this work, we explore…

High Energy Astrophysical Phenomena · Physics 2020-08-18 Haoxiang Lin , Tomonori Totani

Observations of the high-frequency gravitational waves (GWs) emitted by the hot and massive remnant of a binary neutron star merger will provide new probes of the dense-matter equation of state (EoS). We show that current uncertainties in…

High Energy Astrophysical Phenomena · Physics 2024-07-02 Carolyn A. Raithel , Vasileios Paschalidis

The historic first joint detection of both gravitational wave and electromagnetic emission from a binary neutron star merger cemented the association between short gamma-ray bursts (SGRBs) and compact object mergers, as well as providing a…

In addition to the emission of gravitational waves (GWs) the coalescence and merger of two neutron stars will produce a variety of electromagnetic (EM) signals. In this work we combine a large set of numerical relativity simulations…

General Relativity and Quantum Cosmology · Physics 2017-05-03 Tim Dietrich , Maximiliano Ujevic

Based on different neutron star-white dwarf (NS-WD) population models, we investigate the prospects of gravitational-wave (GW) detections for NS-WD mergers, with the help of early warnings from two space-borne decihertz GW observatories,…

High Energy Astrophysical Phenomena · Physics 2024-02-15 Yacheng Kang , Chang Liu , Jin-Ping Zhu , Yong Gao , Lijing Shao , Bing Zhang , Hui Sun , Yi-Han Iris Yin , Bin-Bin Zhang

The combined detection of a binary neutron-star merger in both gravitational waves (GWs) and electromagnetic (EM) radiation spanning the entire spectrum -- GW170817 / AT2017gfo / GRB170817A -- marks a breakthrough in the field of…

High Energy Astrophysical Phenomena · Physics 2021-02-05 Michael W. Coughlin , Tim Dietrich , Ben Margalit , Brian D. Metzger

We present a search for merging compact binary gravitational-wave sources that produce a signal appearing solely or primarily in a single detector. Past analyses have heavily relied on coincidence between multiple detectors to reduce…

High Energy Astrophysical Phenomena · Physics 2020-08-28 Alexander H. Nitz , Thomas Dent , Gareth S. Davies , Ian Harry

Using the observed rate of short-duration gamma-ray bursts (GRBs) it is possible to make predictions for the detectable rate of compact binary coalescences in gravitational-wave detectors. These estimates rely crucially on the growing…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Hsin-Yu Chen , Daniel E. Holz

Gravitational waves generated by the final merger of double neutron star (DNS) binary systems are a key target for the gravitational wave (GW) interferometric detectors, such as LIGO, and the next generation detectors, Advanced LIGO. The…

Astrophysics · Physics 2009-11-13 D. M. Coward , M. Lilley , E. J. Howell , R. R. Burman , D. G. Blair

In May 2023, the LIGO Livingston observatory detected the likely black hole-neutron star (BHNS) merger GW230529_181500. That event is expected to be the merger of a 2.5-4.5 $M_{\odot}$ primary with a secondary compact object of mass between…

High Energy Astrophysical Phenomena · Physics 2025-04-18 Tia Martineau , Francois Foucart , Mark Scheel , Matthew Duez , Lawrence Kidder , Harald Pfeiffer

The expected volume of data from the third-generation gravitational waves (GWs) Einstein Telescope (ET) detector would make traditional GWs search methods such as match filtering impractical. This is due to the large template bank required…

Instrumentation and Methods for Astrophysics · Physics 2023-01-04 Wathela Alhassan , Tomasz Bulik , Mariusz Suchenek

Observations of an optical source coincident with gravitational wave emission detected from a binary neutron star coalescence will improve the confidence of detection, provide host galaxy localisation, and test models for the progenitors of…

High Energy Astrophysical Phenomena · Physics 2011-09-16 D. M. Coward , B. Gendre , P. J. Sutton , E. J. Howell , T. Regimbau , M. Laas-Bourez , A. Klotz , M. Boer , M. Branchesi

We investigate a novel approach to measuring the Hubble constant using gravitational-wave (GW) signals from compact binaries by exploiting the narrowness of the distribution of masses of the underlying neutron-star population.…

General Relativity and Quantum Cosmology · Physics 2012-01-31 Stephen R. Taylor , Jonathan R. Gair , Ilya Mandel

We combine electromagnetic (EM) and gravitational wave (GW) information on the binary neutron star (NS) merger GW170817 in order to constrain the radii $R_{\rm ns}$ and maximum mass $M_{\rm max}$ of NSs. GW170817 was followed by a range of…

High Energy Astrophysical Phenomena · Physics 2017-12-06 Ben Margalit , Brian Metzger

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…

High Energy Astrophysical Phenomena · Physics 2025-12-04 Zhiwei Chen , Youjun Lu , Hao Ma , Qingbo Chu

With the forth observing run of the LIGO-Virgo-KAGRA gravitational-wave network, which enabled the discovery of the kilonova (KN) counterpart to GW170817, ending with no new confirmed neutron star mergers, the intrinsic rate of these events…

High Energy Astrophysical Phenomena · Physics 2026-02-17 Haille M. L. Perkins , Gautham Narayan , Brian D. Fields , Ved G. Shah , Genevieve Schroeder

Joint gravitational wave (GW) and electromagnetic (EM) observations, as a key research direction in multi-messenger astronomy, will provide deep insight into the astrophysics of a vast range of astronomical phenomena. Uncertainties in the…

High Energy Astrophysical Phenomena · Physics 2015-06-19 Xilong Fan , Christopher Messenger , Ik Siong Heng