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相关论文: Decoding Long-duration Gravitational Waves from Bi…

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As current gravitational wave (GW) detectors increase in sensitivity, and particularly as new instruments are being planned, there is the possibility that ground-based GW detectors will observe GWs from highly eccentric neutron star…

As two neutron stars merge, they emit gravitational waves that can potentially be detected by earth bound detectors. Matched-filtering based algorithms have traditionally been used to extract quiet signals embedded in noise. We introduce a…

高能天体物理现象 · 物理学 2020-09-29 Marlin B. Schäfer , Frank Ohme , Alexander H. Nitz

We investigate the ability of current and third-generation gravitational wave (GW) detectors to determine the delay time distribution (DTD) of binary neutron stars (BNS) through a direct measurement of the BNS merger rate as a function of…

Binary neutron stars (BNSs) are one of the most important gravitational wave (GW) sources, which provide key insights to evolution of massive binary stars and nuclear physics. Beyond Laser Interferometer Space Antenna (LISA), Taiji, and…

高能天体物理现象 · 物理学 2026-03-18 Zhiwei Chen , Youjun Lu , Yuchao Luo , Jihui Zhang , Xiao Guo , Jifeng Liu , Wei-Tou Ni

Gravitational waves emitted by asymmetric rotating neutron stars are the primary targets of continuous gravitational-wave searches. Neutron stars in binary systems are particularly interesting due to the potential for non-axisymmetric…

广义相对论与量子宇宙学 · 物理学 2025-05-27 P. B. Covas , M. A. Papa , R. Prix

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…

广义相对论与量子宇宙学 · 物理学 2025-11-17 A. Makai Baker , Paul D. Lasky , Eric Thrane , Jacob Golomb

The Laser Interferometer Gravitational-Wave Observatory (LIGO) and Virgo Interferometer Collaborations have now detected all three classes of compact binary mergers: binary black hole (BBH), binary neutron star (BNS), and neutron star-black…

天体物理仪器与方法 · 物理学 2023-03-20 Richard Qiu , Plamen Krastev , Kiranjyot Gill , Edo Berger

We present here the latest development of a machine-learning pipeline for pre-merger alerts from gravitational waves coming from binary neutron stars. This work starts from the convolutional neural networks introduced in our previous paper…

广义相对论与量子宇宙学 · 物理学 2022-08-17 Grégory Baltus , Justin Janquart , Melissa Lopez , Harsh Narola , Jean-René Cudell

(Abridged) While the gravitational-wave (GW) signal GW170817 was accompanied by a variety of electromagnetic (EM) counterparts, sufficiently high-mass binary neutron star (BNS) mergers are expected to be unable to power bright EM…

高能天体物理现象 · 物理学 2020-05-13 An Chen , Nathan K. Johnson-McDaniel , Tim Dietrich , Reetika Dudi

Most gravitational-wave signals from binary neutron star coalescences are too weak to be individually resolved with current detectors. We demonstrate how to extract a population of sub-threshold binary neutron star signals using Bayesian…

广义相对论与量子宇宙学 · 物理学 2019-08-28 Francisco Hernandez Vivanco , Rory Smith , Eric Thrane , Paul D. Lasky

Binary neutron-star (BNS) systems represent primary sources for the gravitational-wave (GW) detectors. We present a systematic investigation in full GR of the dynamics and GW emission from BNS which inspiral and merge, producing a black…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Luca Baiotti , Bruno Giacomazzo , Luciano Rezzolla

A binary neutron star (BNS) merger event has recently been observed in gravitational waves (GWs). As in the case of binary black holes, GWs generated by BNS consist of inspiral, merger, and post-merger components. Detecting the latter is…

广义相对论与量子宇宙学 · 物理学 2018-02-07 Huan Yang , Vasileios Paschalidis , Kent Yagi , Luis Lehner , Frans Pretorius , Nicolas Yunes

The detection of a secular post-merger gravitational wave (GW) signal in a binary neutron star (BNS) merger serves as strong evidence for the formation of a long-lived post-merger neutron star (NS), which can help constrain the maximum mass…

广义相对论与量子宇宙学 · 物理学 2023-11-17 Yikang Chen , Bin Liu , Shunke Ai , Lin Lan , He Gao , Yong Yuan , Zong-Hong Zhu

Pulsars, especially millisecond pulsars, are intrinsically very stable celestial clocks, and their great pulse period stability open up a wide range of potential applications to astronomical phenomena, such as a natural detector for very…

高能天体物理现象 · 物理学 2014-12-10 Joan Jing Wang , Hsiang-Kuang Chang

We investigate the prospects for joint low-latency gravitational wave (GW) detection and prompt electromagnetic (EM) follow-up observations of coalescing binary neutron stars (BNSs). For BNS mergers associated with short duration gamma-ray…

高能天体物理现象 · 物理学 2016-03-23 Q. Chu , E. J. Howell , A. Rowlinson , H. Gao , B. Zhang , S. J. Tingay , M. Boer , L. Wen

Latest general relativistic simulations for merger of binary neutron stars with realistic equations of state (EOSs) show that a hypermassive neutron star of an ellipsoidal figure is formed after the merger if the total mass is smaller than…

广义相对论与量子宇宙学 · 物理学 2009-11-11 Masaru Shibata

Finding and characterizing gravitational waves from individual supermassive black hole binaries is a central goal of pulsar timing array experiments, which will require analysis methods that can be efficient on our rapidly growing datasets.…

广义相对论与量子宇宙学 · 物理学 2024-10-28 Bence Bécsy

Massive black hole binaries (MBHBs) are binary systems formed by black holes with mass exceeding millions of solar masses, expected to form and evolve in the nuclei of galaxies. The extreme compact nature of such objects determines a loud…

高能天体物理现象 · 物理学 2024-06-26 Matteo Bonetti , Alessia Franchini , Bruno Giovanni Galuzzi , Alberto Sesana

The nature of the remnant of a binary neutron star (BNS) merger is uncertain. Though certainly a black hole (BH) in the cases of the most massive BNSs, X-ray lightcurves from gamma-ray burst (GRB) afterglows suggest a neutron star (NS) as a…

The recent discovery of gravitational waves (GWs) has opened a new avenue for investigating the equation of state (EOS) of dense matter in compact stars, which is an outstanding problem in astronomy and nuclear physics. In the future,…

高能天体物理现象 · 物理学 2024-11-26 Ziming Wang , Yong Gao , Dicong Liang , Junjie Zhao , Lijing Shao