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The gravitational-wave signal from the merger of two neutron stars cannot be easily differentiated from the signal produced by a comparable-mass mixed binary of a neutron star and a black hole. Indeed, both binary types can account for the…

High Energy Astrophysical Phenomena · Physics 2020-04-24 Hsin-Yu Chen , Katerina Chatziioannou

On August 17, 2017 at 12:41:04 UTC the Advanced LIGO and Advanced Virgo gravitational-wave detectors made their first observation of a binary neutron star inspiral. The signal, GW170817, was detected with a combined signal-to-noise ratio of…

General Relativity and Quantum Cosmology · Physics 2017-10-17 The LIGO Scientific Collaboration , The Virgo Collaboration

Neutron star mergers have recently become a tool to study extreme gravity, nucleosynthesis, and the chemical composition of the Universe. To date, there has been one joint gravitational and electromagnetic observation of a binary neutron…

High Energy Astrophysical Phenomena · Physics 2023-04-05 Amelia Henkel , Francois Foucart , Geert Raaijmakers , Samaya Nissanke

We present the prospects for the early (pre-merger) detection and localization of compact-binary coalescences using gravitational waves over the next 10 years. Early warning can enable the direct observation of the prompt and early…

High Energy Astrophysical Phenomena · Physics 2020-10-20 Alexander H. Nitz , Marlin Schäfer , Tito Dal Canton

Binary neutron star mergers are rich laboratories for physics, accessible with ground-based interferometric gravitational-wave detectors such as the Advanced LIGO and Advanced Virgo. If a neutron star remnant survives the merger, it can…

Instrumentation and Methods for Astrophysics · Physics 2020-02-13 Sharan Banagiri , Michael W. Coughlin , James Clark , Paul D. Lasky , M. A. Bizouard , Colm Talbot , Eric Thrane , Vuk Mandic

Binary neutron stars (BNSs) will spend $\simeq 10$ -- 15 minutes in the band of Advanced LIGO and Virgo detectors at design sensitivity. Matched-filtering of gravitational-wave (GW) data could in principle accumulate enough signal-to-noise…

Motivated by the recent detection of the gravitational wave signal emitted by a binary neutron star merger, we analyse the possible impact of dark matter on such signals. We show that dark matter cores in merging neutron stars may yield an…

Cosmology and Nongalactic Astrophysics · Physics 2018-05-16 John Ellis , Andi Hektor , Gert Hütsi , Kristjan Kannike , Luca Marzola , Martti Raidal , Ville Vaskonen

X-ray observations of some short gamma-ray bursts indicate that a long-lived neutron star can form as a remnant of a binary neutron star merger. We develop a gravitational-wave detection pipeline for a long-lived binary neutron star merger…

High Energy Astrophysical Phenomena · Physics 2018-08-21 Nikhil Sarin , Paul D. Lasky , Letizia Sammut , Greg Ashton

SKA is a new technology radio-telescope array, about two orders of magnitude more sensitive and rapid in sky surveys than present instruments. It will probe the dark age of the universe, just afer recombination, and during the epoch of…

Cosmology and Nongalactic Astrophysics · Physics 2015-09-30 Francoise Combes

We demonstrate Bayesian analyses of the complete gravitational-wave spectrum of binary neutron star mergers events with the next-generation detector Einstein Telescope. Our mock analyses are performed for 20 different signals using the…

General Relativity and Quantum Cosmology · Physics 2026-02-12 Giulia Huez , Sebastiano Bernuzzi , Matteo Breschi , Rossella Gamba

Extending previous work by a number of authors, we have recently presented a new approach in which the detection of gravitational waves from merging neutron star binaries can be used to determine the equation of state of matter at nuclear…

General Relativity and Quantum Cosmology · Physics 2015-03-09 Kentaro Takami , Luciano Rezzolla , Luca Baiotti

The pulsar timing technique, which compares the observed arrival times of electromagnetic radiation from a pulsar with the predicted arrival times derived from a theoretical model of the pulsar system, is used in pulsar astronomy to infer a…

General Relativity and Quantum Cosmology · Physics 2024-12-17 Amodio Carleo , Delphine Perrodin , Andrea Possenti

The late stage of an inspiraling neutron star binary gives rise to strong gravitational wave emission due to its highly dynamic, strong gravity. Moreover, interactions between the stellar magnetospheres can produce considerable…

General Relativity and Quantum Cosmology · Physics 2013-08-27 Carlos Palenzuela , Luis Lehner , Marcelo Ponce , Steven L. Liebling , Matthew Anderson , David Neilsen , Patrick Motl

We present a search for gravitational waves from merging binary neutron stars which have non-negligible eccentricity as they enter the LIGO observing band. We use the public Advanced LIGO data which covers the period from 2015 through 2017…

High Energy Astrophysical Phenomena · Physics 2020-03-24 Alexander H. Nitz , Amber Lenon , Duncan A. Brown

A number of works have shown that important information on the equation of state of matter at nuclear density can be extracted from the gravitational waves emitted by merging neutron-star binaries. We present a comprehensive analysis of the…

General Relativity and Quantum Cosmology · Physics 2016-06-29 Luciano Rezzolla , Kentaro Takami

The observation of gravitational wave signals from binary black hole mergers has established the field of gravitational wave astronomy. It is expected that future networks of gravitational wave detectors will possess great potential in…

General Relativity and Quantum Cosmology · Physics 2018-06-06 Joseph Mills , Vaibhav Tiwari , Stephen Fairhurst

The coalescence of binary neutron stars can yield the expulsion of a fast-moving, quasi-isotropic material, which may induce thermal radiation and give rise to kilonova emission. Moreover, the interaction between the ejected material and…

High Energy Astrophysical Phenomena · Physics 2024-02-29 Shao-Ze Li , Yun-Wei Yu , He Gao , Lin Lan

We describe realistic observing scenarios for early warning detection of binary neutron star mergers with the current generation of ground-based gravitational-wave detectors as these approach design sensitivity. Using Fisher analysis, we…

High Energy Astrophysical Phenomena · Physics 2022-08-31 Ryan Magee , Ssohrab Borhanian

We investigate emission signatures of binary compact star gravitational wave sources consisting of strongly magnetized neutron stars (NSs) and/or white dwarfs (WDs) in their late-time inspiral phase. Because of electromagnetic interactions…

High Energy Astrophysical Phenomena · Physics 2018-11-21 Jie-Shuang Wang , Fang-Kun Peng , Kinwah Wu , Zi-Gao Dai

Merging rates of compact binaries (double neutron stars or black holes) are calculated based on the modern concept of binary stellar evolution. It is found that the initial laser interferometers with an rms-sensitivity of $10^{-21}$ at the…

Astrophysics · Physics 2009-09-25 M. E. Prokhorov , V. M. Lipunov , K. A. Postnov