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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 next generation of gravitational-wave observatories will achieve unprecedented strain sensitivities with an expanded observing band. They will detect ${\cal O}(10^5)$ binary neutron star (BNS) mergers every year, the loudest of which…

General Relativity and Quantum Cosmology · Physics 2025-11-17 A. Makai Baker , Paul D. Lasky , Eric Thrane , Jacob Golomb

Using data from 289 numerical relativity simulations of merging binary neutron stars, we identify, for the first time, a robust quasi-universal relation connecting the postmerger peak gravitational-wave frequency and the value of the…

General Relativity and Quantum Cosmology · Physics 2022-05-04 Matteo Breschi , Sebastiano Bernuzzi , Daniel Godzieba , Albino Perego , David Radice

Continuous gravitational waves from rapidly rotating neutron stars are on the new frontiers of gravitational wave astrophysics and have strong connections to electromagnetic astronomy, nuclear astrophysics, and condensed matter physics. In…

General Relativity and Quantum Cosmology · Physics 2026-03-13 Benjamin J. Owen

Finite-size effects on the gravitational wave signal from a neutron star merger typically manifest at high frequencies where detector sensitivity decreases. Proposed sensitivity improvements can give us access both to stronger signals and…

General Relativity and Quantum Cosmology · Physics 2021-01-04 Carl-Johan Haster , Katerina Chatziioannou , Andreas Bauswein , James Alexander Clark

Merging neutron star (NS) binaries may be detected by ground-based gravitational wave (GW) interferometers (e.g. LIGO/VIRGO) within this decade and may also generate electromagnetic radiation detectable by wide-field, fast imaging…

High Energy Astrophysical Phenomena · Physics 2015-06-12 Dong Lai

We present a novel method for revealing the equation of state of high-density neutron star matter through gravitational waves emitted during the postmerger phase of a binary neutron star system. The method relies on a small number of…

Solar and Stellar Astrophysics · Physics 2015-06-19 A. Bauswein , N. Stergioulas , H. -T. Janka

Neutron star observations, including direct mass and radius measurements as well as the analysis of gravitational wave signals emitted by stellar mergers, provide valuable and unique insights into the properties of strongly interacting…

Nuclear Theory · Physics 2019-02-20 Aleksi Vuorinen

For third generation gravitational wave detectors, such as the Einstein Telescope, gravitational wave signals from binary neutron stars can last up to a few days before the neutron stars merge. To estimate the measurement uncertainties of…

High Energy Astrophysical Phenomena · Physics 2018-07-04 Man Leong Chan , Chris Messenger , Ik Siong Heng , Martin Hendry

We discuss an astrometric timing effect on data analysis of continuous gravitational waves from rapidly rotating isolated neutron stars. Special attention is directed to the possibility of determining their distances by measuring the…

Astrophysics · Physics 2009-11-11 Naoki Seto

We investigate the constraints on the neutron star equation of state (EoS) and nuclear properties achievable with third-generation gravitational wave detectors using the Fisher information matrix approach within the relativistic mean field…

High Energy Astrophysical Phenomena · Physics 2026-05-29 Zhenyu Zhu , Richard O'Shaughnessy

Gravitational waves from neutron star-black hole (NSBH) mergers that undergo tidal disruption provide a potential avenue to study the equation of state of neutron stars and hence the behaviour of matter at its most extreme densities. We…

General Relativity and Quantum Cosmology · Physics 2023-05-31 Teagan A. Clarke , Lani Chastain , Paul D. Lasky , Eric Thrane

The historical first detection of a binary neutron star merger by the LIGO-Virgo collaboration [B. P. Abbott et al. Phys. Rev. Lett. 119, 161101 (2017)] is providing fundamental new insights into the astrophysical site for the $r$-process…

Nuclear Theory · Physics 2018-05-02 F. J. Fattoyev , J. Piekarewicz , C. J. Horowitz

We present the prospects for the pre-merger detection and localization of binary neutron star mergers with third generation gravitational-wave observatories. We consider a wide variety of gravitational-wave networks which may be operating…

High Energy Astrophysical Phenomena · Physics 2021-09-07 Alexander H. Nitz , Tito Dal Canton

We obtain a new equation of state for the nucleonic and hyperonic inner core of neutron stars that fulfills the 2$M_{\odot}$ observations as well as the recent determinations of stellar radii below 13 km. The nucleonic equation of state is…

High Energy Astrophysical Phenomena · Physics 2016-12-28 Laura Tolos , Mario Centelles , Angels Ramos

The next generation of ground-based gravitational-wave detectors, Einstein Telescope (ET) and Cosmic Explorer (CE), present a unique opportunity to put constraints on dense matter, among many other groundbreaking scientific goals. In a…

General Relativity and Quantum Cosmology · Physics 2023-12-18 Francesco Iacovelli , Michele Mancarella , Chiranjib Mondal , Anna Puecher , Tim Dietrich , Francesca Gulminelli , Michele Maggiore , Micaela Oertel

Advanced gravitational-wave detectors that have made groundbreaking discoveries are Michelson interferometers with resonating optical cavities as their arms. As light travels at finite speed, these cavities are optimal for enhancing signals…

General Relativity and Quantum Cosmology · Physics 2023-05-30 Teng Zhang , Huan Yang , Denis Martynov , Patricia Schmidt , Haixing Miao

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

Detection of continuous gravitational waves from rapidly-spinning neutron stars opens up the possibility of examining their internal physics. We develop a framework that leverages a future continuous gravitational wave detection to infer a…

General Relativity and Quantum Cosmology · Physics 2023-02-15 Neil Lu , Karl Wette , Susan M. Scott , Andrew Melatos

We explore the potential for detecting rotational instabilities in the post-merger phase of binary neutron star mergers using different network configurations of upgraded and next-generation gravitational wave detectors. Our study employs…

General Relativity and Quantum Cosmology · Physics 2026-05-05 Argyro Sasli , Nikolaos Karnesis , Nikolaos Stergioulas