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Gravitational wave measurements of binary neutron star coalescences offer information about the properties of the extreme matter that comprises the stars. Despite our expectation that all neutron stars in the Universe obey the same equation…

广义相对论与量子宇宙学 · 物理学 2018-05-30 Katerina Chatziioannou , Carl-Johan Haster , Aaron Zimmerman

Gravitational-wave signals from binary neutron star coalescences carry information about the star's equation of state in their tidal signatures. A major issue in the inference of the tidal parameters (or directly of the equation of state)…

广义相对论与量子宇宙学 · 物理学 2021-06-16 Rossella Gamba , Matteo Breschi , Sebastiano Bernuzzi , Michalis Agathos , Alessandro Nagar

Fisher matrix and related studies have suggested that with second-generation gravitational wave detectors, it may be possible to infer the equation of state of neutron stars using tidal effects in binary inspiral. Here we present the first…

广义相对论与量子宇宙学 · 物理学 2015-06-16 Walter Del Pozzo , Tjonnie G. F. Li , Michalis Agathos , Chris Van Den Broeck , Salvatore Vitale

We confront observational data from gravitational wave event GW170817 with microscopic modeling of the cold neutron star equation of state. We develop and employ a Bayesian statistical framework that enables us to implement constraints on…

核理论 · 物理学 2018-08-15 Yeunhwan Lim , Jeremy W. Holt

Gravitational waves emitted by binary neutron stars (BNS) provide information about the internal structure of neutron stars (NSs), helping to verify dense matter equations of state. We investigate how the measurement accuracy of NS's tidal…

广义相对论与量子宇宙学 · 物理学 2026-03-10 Gyeongbin Park , Chang-Hwan Lee , Hee-Suk Cho

The early part of the gravitational wave signal of binary neutron star inspirals can potentially yield robust information on the nuclear equation of state. The influence of a star's internal structure on the waveform is characterized by a…

高能天体物理现象 · 物理学 2011-02-28 Tanja Hinderer , Benjamin D. Lackey , Ryan N. Lang , Jocelyn S. Read

Gravitational waves from the coalescence of two neutron stars were recently detected for the first time by the LIGO-Virgo collaboration, in event GW170817. This detection placed an upper limit on the effective tidal deformability of the two…

高能天体物理现象 · 物理学 2018-05-02 Carolyn Raithel , Feryal Özel , Dimitrios Psaltis

Gravitational wave (GW) astronomy has consolidated its role as a new observational window to reveal the properties of compact binaries in the Universe. In particular, the discovery of the first binary neutron star coalescence, GW170817, led…

广义相对论与量子宇宙学 · 物理学 2018-12-26 Anuradha Samajdar , Tim Dietrich

We study how to extract information on the neutron star equation of state from the gravitational wave signal emitted during the coalescence of a binary system composed of two neutron stars or a neutron star and a black hole. We use…

广义相对论与量子宇宙学 · 物理学 2015-06-17 Andrea Maselli , Leonardo Gualtieri , Valeria Ferrari

During the inspiral of a binary neutron star, viscous processes in the neutron star matter can damp out the tidal energy induced by its companion and convert it to thermal energy. This tidal dissipation/heating process introduces a net…

广义相对论与量子宇宙学 · 物理学 2025-10-15 Suprovo Ghosh , Samanwaya Mukherjee , Sukanta Bose , Debarati Chatterjee

With the increasing sensitivity of gravitational-wave detectors, we expect to observe multiple binary neutron-star systems through gravitational waves in the near future. The combined analysis of these gravitational-wave signals offers the…

高能天体物理现象 · 物理学 2022-03-11 Nina Kunert , Peter T. H. Pang , Ingo Tews , Michael W. Coughlin , Tim Dietrich

With the expected large number of binary neutron star (BNS) observations through gravitational waves (GWs), third-generation GW detectors, Cosmic Explorer (CE) and Einstein Telescope (ET), will be able to constrain the tidal deformability,…

高能天体物理现象 · 物理学 2024-07-09 Poulami Dutta Roy , Pankaj Saini

The gravitational wave emission from the merging binary neutron star system GW170817 arrived full of tidal information which can be used to probe the fundamental ultra-dense nuclear physics residing in these stars. In previous work, we used…

广义相对论与量子宇宙学 · 物理学 2020-09-23 Zack Carson , Andrew W. Steiner , Kent Yagi

Extracting the properties of a binary system emitting gravitational waves relies on models describing the last stages of the compact binary coalescence. In this article, we study potential biases inherent to current tidal waveform…

广义相对论与量子宇宙学 · 物理学 2019-07-31 Anuradha Samajdar , Tim Dietrich

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…

核理论 · 物理学 2020-05-06 Andrea Sabatucci , Omar Benhar

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…

广义相对论与量子宇宙学 · 物理学 2018-11-07 Reetika Dudi , Francesco Pannarale , Tim Dietrich , Mark Hannam , Sebastiano Bernuzzi , Frank Ohme , Bernd Bruegmann

Recent studies suggest that coalescing neutron stars are subject to a fluid instability involving the nonlinear coupling of the tide to $p$-modes and $g$-modes. Its influence on the inspiral dynamics and thus the gravitational wave signal…

高能天体物理现象 · 物理学 2016-12-07 Reed Essick , Salvatore Vitale , Nevin N. Weinberg

Gravitational-wave observations of neutron star mergers can probe the nuclear equation of state by measuring the imprint of the neutron star's tidal deformability on the signal. We investigate the ability of future gravitational-wave…

高能天体物理现象 · 物理学 2022-11-04 Daniel Finstad , Laurel V. White , Duncan A. Brown

After the detection of gravitational waves caused by the coalescence of compact objects in the mass range of neutron stars, GW170817, several studies have searched for an imprint of tidal effects in the signal, employing different model…

广义相对论与量子宇宙学 · 物理学 2019-12-02 Wolfgang Kastaun , Frank Ohme

Inference of the equation-of-state (EoS) of dense nuclear matter in neutron-star cores is a principal science goal of X-ray and gravitational-wave observations of neutron stars. In particular, gravitational-wave observations provide an…

广义相对论与量子宇宙学 · 物理学 2023-01-25 Rahul Kashyap , Arnab Dhani , Bangalore Sathyaprakash
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