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相关论文: Measuring neutron-star properties via gravitationa…

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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

We present results from the first large parameter study of neutron star mergers using fully general relativistic simulations with finite-temperature microphysical equations of state and neutrino cooling. We consider equal and unequal-mass…

广义相对论与量子宇宙学 · 物理学 2016-07-20 Sebastiano Bernuzzi , David Radice , Christian D. Ott , Luke F. Roberts , Philipp Moesta , Filippo Galeazzi

We present a rapid analytic framework for predicting kilonova light curves following neutron star (NS) mergers, where the main input parameters are binary-based properties measurable by gravitational wave detectors (chirp mass and mass…

高能天体物理现象 · 物理学 2021-07-07 Matt Nicholl , Ben Margalit , Patricia Schmidt , Graham P. Smith , Evan J. Ridley , James Nuttall

Binary neutron star mergers are strong gravitational wave (GW) sources and the leading candidates to interpret short duration gamma-ray bursts (SGRBs). Under the assumptions that SGRBs are produced by double neutron star mergers and that…

高能天体物理现象 · 物理学 2016-08-06 He Gao , Bing Zhang , Hou-Jun Lü

Following the historical observations of GW170817 and its multi-wavelength afterglow, more radio afterglows from neutron star mergers are expected in the future as counterparts to gravitational wave inspiral signals. We wish to describe…

高能天体物理现象 · 物理学 2019-10-23 Raphaël Duque , Frédéric Daigne , Robert Mochkovitch

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…

天体物理仪器与方法 · 物理学 2020-02-13 Sharan Banagiri , Michael W. Coughlin , James Clark , Paul D. Lasky , M. A. Bizouard , Colm Talbot , Eric Thrane , Vuk Mandic

We present a study aimed at quantifying the detectability of radio counterparts of binary neutron star (BNS) mergers with total masses $\lesssim 3$\,M$_{\odot}$, which may form neutron star (NS) remnants. We focus on mergers localized by…

高能天体物理现象 · 物理学 2025-07-01 Kara Merfeld , Alessandra Corsi

Next-generation gravitational wave (GW) observatories, such as the Einstein Telescope (ET) and Cosmic Explorer, will observe binary neutron star (BNS) mergers across cosmic history, providing precise parameter estimates for the closest…

Motivated by the recent discovery of the binary neutron-star (BNS) merger GW170817, we determine the optimal observational setup for detecting and characterizing radio counterparts of nearby ($d_L\sim40$\,Mpc) BNS mergers. We simulate…

高能天体物理现象 · 物理学 2018-11-28 Dario Carbone , Alessandra Corsi

We present numerical results of three-dimensional simulations for the merger of binary neutron stars (BNSs) in full general relativity. Hybrid equations of state (EOSs) are adopted to mimic realistic nuclear EOSs. In this approach, we…

广义相对论与量子宇宙学 · 物理学 2009-11-11 Masaru Shibata , Keisuke Taniguchi , Koji Uryu

Mergers of binaries consisting of two neutron stars, or a black hole and a neutron star, offer a unique opportunity to study a range of physical and astrophysical processes using two different and almost orthogonal probes - gravitational…

高能天体物理现象 · 物理学 2020-12-02 Ehud Nakar

We present a robust and efficient methodology for parameter estimation of gravitational waves generated during the post-merger phase of binary neutron star mergers. Our approach leverages an analytic waveform model combined with empirical…

广义相对论与量子宇宙学 · 物理学 2026-01-13 Stamatis Vretinaris , Georgios Vretinaris , Christos Mermigkas , Minas Karamanis , Nikolaos Stergioulas

The final burst of gravitational radiation emitted by coalescing binary neutron stars carries direct information about the neutron star fluid, and, in particular, about the equation of state of nuclear matter at extreme densities. The final…

广义相对论与量子宇宙学 · 物理学 2009-11-07 Joshua A. Faber , Frederic A. Rasio

We perform an extensive study of equation of state (EoS) models featuring a phase transition from hadronic to deconfined quark matter in neutron star merger simulations. We employ three different hadronic EoSs, a constant speed of sound…

高能天体物理现象 · 物理学 2025-12-12 Sebastian Blacker , Andreas Bauswein

We construct new, multivariate empirical relations for measuring neutron star radii and tidal deformabilities from the dominant gravitational wave frequency in the post-merger phase of binary neutron star mergers. The relations determine…

广义相对论与量子宇宙学 · 物理学 2020-04-29 Stamatis Vretinaris , Nikolaos Stergioulas , Andreas Bauswein

Numerical simulations for the merger of binary neutron stars are performed in full general relativity incorporating both nucleonic and hyperonic finite-temperature equations of state (EOS) and neutrino cooling. It is found that for the…

高能天体物理现象 · 物理学 2015-06-05 Kenta Kiuchi , Yuichiro Sekiguchi , Koutarou Kyutoku , Masaru Shibata

The recent detection of a neutron star binary through gravitational waves, GW170817, has offered another source of information about the properties of cold supranuclear matter. Information from the signal emitted before the neutron stars…

广义相对论与量子宇宙学 · 物理学 2019-02-20 Andoni Torres-Rivas , Katerina Chatziioannou , Andreas Bauswein , James Alexander Clark

The LIGO-Virgo collaboration ground-breaking detection of the binary neutron-star merger event, GW170817, has intensified efforts towards the understanding of the equation of state (EoS) of nuclear matter. In this letter, we compare…

核实验 · 物理学 2018-07-18 C. Y. Tsang , M. B. Tsang , P. Danielewicz , W. G. Lynch , F. J. Fattoyev

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…

广义相对论与量子宇宙学 · 物理学 2021-01-04 Carl-Johan Haster , Katerina Chatziioannou , Andreas Bauswein , James Alexander Clark

We present a systematic numerical relativity study of the mass ejection and the associated electromagnetic transients and nucleosynthesis from binary neutron star (NS) mergers. We find that a few $10^{-3}\, M_\odot$ of material are ejected…

高能天体物理现象 · 物理学 2019-06-03 David Radice , Albino Perego , Kenta Hotokezaka , Steven A. Fromm , Sebastiano Bernuzzi , Luke F. Roberts