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Gravitational waves from merging binary neutron stars carry characteristic information about their astrophysical properties, including masses and tidal deformabilities, that are needed to infer their radii. In this study, we use Bayesian…

High Energy Astrophysical Phenomena · Physics 2025-02-06 Sanika Khadkikar , Ish Gupta , Rahul Kashyap , Koustav Chandra , Rossella Gamba , Bangalore Sathyaprakash

Measurements of the properties of binary neutron star systems from gravitational-wave observations require accurate theoretical models for such signals. However, current models are incomplete, as they do not take into account all of the…

General Relativity and Quantum Cosmology · Physics 2018-11-07 Reetika Dudi , Francesco Pannarale , Tim Dietrich , Mark Hannam , Sebastiano Bernuzzi , Frank Ohme , Bernd Bruegmann

Neutron star equations of state with strong phase transitions may support twin stars, hybrid and hadronic stars with the same mass but different tidal deformabilities. The presence of twin stars in the population of merging neutron stars…

High Energy Astrophysical Phenomena · Physics 2022-12-20 Philippe Landry , Kabir Chakravarti

Topological structure has been extensively studied and confirmed in highly correlated condensed matter physics. We explore the gravitational waves emitted from binary neutron star mergers using the pseudoconformal model for dense nuclear…

Nuclear Theory · Physics 2021-07-07 Wen-Cong Yang , Yong-Liang Ma , Yue-Liang Wu

The direct detection of gravitational waves will provide valuable astrophysical information about many celestial objects. Also, it will be an important test to general relativity and other theories of gravitation. The gravitational wave…

The gravitational waveform of merging binary neutron stars encodes information about extreme states of matter. Probing these gravitational emissions requires the gravitational-wave detectors to have high sensitivity above 1 kHz. Fortunately…

General Relativity and Quantum Cosmology · Physics 2018-09-12 Haixing Miao , Huan Yang , Denis Martynov

Precise measurement of stellar properties through the observation of continuous gravitational waves from spinning non-axisymmetric neutron stars can shed light onto new physics beyond terrestrial laboratories. Although hitherto undetected,…

General Relativity and Quantum Cosmology · Physics 2024-01-09 Yuhan Hua , Karl Wette , Susan M. Scott , Matthew D. Pitkin

Bayesian model selection provides a powerful and mathematically transparent framework to tackle hypothesis testing, such as detection tests of gravitational waves emitted during the coalescence of binary systems using ground-based laser…

General Relativity and Quantum Cosmology · Physics 2009-11-13 John Veitch , Alberto Vecchio

Advanced ground-based gravitational-wave detectors are capable of measuring tidal influences in binary neutron-star systems. In this work, we report on the statistical uncertainties in measuring tidal deformability with a full Bayesian…

General Relativity and Quantum Cosmology · Physics 2014-05-28 Leslie Wade , Jolien D. E. Creighton , Evan Ochsner , Benjamin D. Lackey , Benjamin F. Farr , Tyson B. Littenberg , Vivien Raymond

The new era of gravitational wave astronomy truly began on September 14, 2015 with the detection of GW150914, the sensational first direct observation of gravitational waves from the inspiral and merger of two black holes by the two…

General Relativity and Quantum Cosmology · Physics 2022-04-12 Nelson Christensen , Renate Meyer

Models of gravitational waveforms from coalescing black-hole binaries play a crucial role in the efforts to detect and interpret the signatures of those binaries in the data of large-scale interferometers. Here we summarize recent models…

General Relativity and Quantum Cosmology · Physics 2015-03-19 Frank Ohme

Gravitational wave (GW) experiments are entering their advanced stage which should soon open a new observational window on the Universe. Looking into this future, the Einstein Telescope (ET) was designed to have a fantastic sensitivity…

High Energy Astrophysical Phenomena · Physics 2014-11-07 Marek Biesiada , Xuheng Ding , Aleksandra Piorkowska , Zong-Hong Zhu

We introduce an algorithm for placing template waveforms for the search of compact binary mergers in gravitational wave interferometer data. We exploit the smooth dependence of the amplitude and unwrapped phase of the frequency-domain…

Instrumentation and Methods for Astrophysics · Physics 2019-07-03 Javier Roulet , Liang Dai , Tejaswi Venumadhav , Barak Zackay , Matias Zaldarriaga

The various materials of test masses, and the difference of arm lengths of global ground-based gravitational-wave interferometer detectors offer a unique approach to test Newton's second law, weak equivalence principle, and Einstein…

General Relativity and Quantum Cosmology · Physics 2021-11-29 Xi-Long Fan

Black hole-neutron star binary mergers display a much richer phenomenology than black hole-black hole mergers, even in the relatively simple case - considered in this paper - in which both the black hole and the neutron star are…

General Relativity and Quantum Cosmology · Physics 2015-06-16 Francesco Pannarale , Emanuele Berti , Koutarou Kyutoku , Masaru Shibata

Binary neutron star mergers used to be the most promising candidate for gravitational waves for ground-based gravitational wave detectors, such as advanced LIGO and advanced VIRGO. This was proved by the detection of gravitational waves…

High Energy Astrophysical Phenomena · Physics 2025-09-12 Kenta Kiuchi

A world-wide array of highly sensitive interferometers stands poised to usher in a new era in astronomy with the first direct detection of gravitational waves. The data from these instruments will provide a unique perspective on extreme…

General Relativity and Quantum Cosmology · Physics 2013-02-27 Neil J. Cornish

We present a unified description of gravitational-wave data analysis that unites the template-based analysis used to detect deterministic signals from well-modeled sources, such as binary-black-hole mergers, with the cross-correlation…

General Relativity and Quantum Cosmology · Physics 2015-06-15 Neil J. Cornish , Joseph D. Romano

The observation of the gravitational wave signal GW170817, consistent with emission from the inspiral of a binary neutron-star system, provided information on the tidal deformation of the participating stars. The available data may be…

Nuclear Theory · Physics 2020-05-06 Andrea Sabatucci , Omar Benhar

Numerical relativity is the most promising tool for theoretically modeling the inspiral and coalescence of neutron star and black hole binaries, which, in turn, are among the most promising sources of gravitational radiation for future…

General Relativity and Quantum Cosmology · Physics 2009-07-09 Thomas W. Baumgarte , Stuart L. Shapiro