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相关论文: Modeling the postmerger gravitational wave signal …

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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…

广义相对论与量子宇宙学 · 物理学 2022-04-12 Nelson Christensen , Renate Meyer

The detection of the events GW150914 and GW151226, both consistent with the merger of a binary black hole system (BBH), opened the era of gravitational wave (GW) astronomy. Besides BBHs, the most promising GW sources are the coalescences of…

The detection of gravitational waves from a neutron star merger, GW170817, marked the dawn of a new era in time-domain astronomy. Monitoring of the radio emission produced by the merger, including high-resolution radio imaging, enabled…

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…

高能天体物理现象 · 物理学 2018-08-21 Nikhil Sarin , Paul D. Lasky , Letizia Sammut , Greg Ashton

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

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…

广义相对论与量子宇宙学 · 物理学 2018-06-06 Joseph Mills , Vaibhav Tiwari , Stephen Fairhurst

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

Gravitational wave observations of binary neutron star mergers provide valuable information about neutron star structure and the equation of state of dense nuclear matter. Numerous methods have been proposed to analyze the population of…

高能天体物理现象 · 物理学 2022-02-23 Jacob Golomb , Colm Talbot

Gravitational-wave observation together with a large number of electromagnetic observations shows that the source of the latest gravitational-wave event, GW170817, detected primarily by advanced LIGO, is the merger of a binary neutron star.…

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

The oscillation modes of neutron star (NS) merger remnants, as encoded by the kHz postmerger gravitational wave (GW) signal, hold great potential for constraining the as-yet undetermined equation of state (EOS) of dense nuclear matter.…

广义相对论与量子宇宙学 · 物理学 2025-02-28 Jamie Bamber , Antonios Tsokaros , Milton Ruiz , Stuart L. Shapiro

The stochastic gravitational-wave background (SGWB) generated by the inspiral and merger of binary neutron stars is traditionally modelled assuming that the inspiral is promptly followed by the collapse of the merger remnant to a rotating…

高能天体物理现象 · 物理学 2025-06-19 Léonard Lehoucq , Irina Dvorkin , Luciano Rezzolla

A milestone of multi-messenger astronomy has been achieved with the detection of gravitational waves from a binary neutron star merger accompanied by observations of several associated electromagnetic counterparts. Joint observations can…

高能天体物理现象 · 物理学 2018-02-28 Chris Pankow , Eve A. Chase , Scott Coughlin , Michael Zevin , Vassiliki Kalogera

The only binary neutron star merger gravitational wave event with detected electromagnetic counterparts recorded to date is GRB170817A. This merger occurred in a rarefied medium with a density smaller than $10^{-3}-10^{-2}~{\rm cm}^{-3}$.…

高能天体物理现象 · 物理学 2021-02-22 Raphaël Duque , Paz Beniamini , Frédéric Daigne , Robert Mochkovitch

Binary neutron star mergers offer a new and independent means of measuring the Hubble constant $H_0$ by combining the gravitational-wave inferred source luminosity distance with its redshift obtained from electromagnetic follow-up. This…

高能天体物理现象 · 物理学 2022-01-27 S. Mastrogiovanni , R. Duque , E. Chassande-Mottin , F. Daigne , R. Mochkovitch

Gravitational waves from the collision of binary neutron stars provide a unique opportunity to study the behaviour of supranuclear matter, the fundamental properties of gravity, and the cosmic history of our Universe. However, given the…

广义相对论与量子宇宙学 · 物理学 2022-11-02 Gregory Ashton , Tim Dietrich

We show how to coherently combine information from a population of sub-threshold, gravitational-wave binary neutron star post-merger remnants. Although no individual event in our synthetic population can be claimed as a confident detection,…

广义相对论与量子宇宙学 · 物理学 2026-04-21 Fiona H. Panther , Paul D. Lasky

Tidal disruption has a dramatic impact on the outcome of neutron star-black hole mergers. The phenomenology of these systems can be divided in three classes: nondisruptive, mildly disruptive or disruptive. The cutoff frequency of the…

广义相对论与量子宇宙学 · 物理学 2015-11-04 Francesco Pannarale , Emanuele Berti , Koutarou Kyutoku , Benjamin D. Lackey , Masaru Shibata

The upper bound of the speed of sound in dense nuclear matter is one of the most interesting but still unsolved problems in Nuclear Physics. Theoretical studies in connection with recent observational data of isolated neutron stars as well…

核理论 · 物理学 2021-01-27 A. Kanakis-Pegios , P. S. Koliogiannis , Ch. C. Moustakidis

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…

广义相对论与量子宇宙学 · 物理学 2026-03-13 Benjamin J. Owen