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相关论文: Multimessenger Parameter Estimation of GW170817

200 篇论文

The joint detection of GW170817 and GRB 170817A opened the era of multi-messenger astronomy with gravitational waves (GWs) and provided the first direct probe that at least some binary neutron star (BNS) mergers are progenitors of short…

Finding the electromagnetic (EM) counterpart of binary compact star merger, especially the binary neutron star (BNS) merger, is critically important for gravitational wave (GW) astronomy, cosmology and fundamental physics. On Aug. 17, 2017,…

Detections of gravitational waves (GWs) may soon uncover the signal from the coalescence of a black hole - neutron star (BHNS) binary, that is expected to be accompanied by an electromagnetic (EM) signal. In this paper, we present a…

高能天体物理现象 · 物理学 2020-01-29 C. Barbieri , O. S. Salafia , A. Perego , M. Colpi , G. Ghirlanda

Context. The coincident detection of GW170817 and GRB170817A marked a milestone for the connection between binary neutron star (BNS) mergers and short gamma-ray bursts (sGRBs). These mergers can lead to the formation of a black hole…

高能天体物理现象 · 物理学 2024-08-29 V. Mpisketzis , A. Nathanail

We demonstrate by a large set of merger simulations for symmetric binary neutron stars (NSs) that there is a tight correlation between the frequency peak of the postmerger gravitational-wave (GW) emission and the physical properties of the…

太阳与恒星天体物理 · 物理学 2015-05-28 A. Bauswein , H. -Th. Janka

Determining the mass of the neutron stars (NSs) accurately improves our understanding of the NS interior and complicated binary evolution. However, the masses of the systems are degenerate with orbital inclination angle when using solely…

高能天体物理现象 · 物理学 2025-03-18 Kaye Jiale Li , Jane SiNan Long , Kinwah Wu , Albert K. H. Kong

We introduce a family of equations of state (EoS) for hybrid neutron star (NS) matter that is obtained by a two-zone parabolic interpolation between a soft hadronic EoS at low densities and a set of stiff quark matter EoS at high densities…

高能天体物理现象 · 物理学 2022-02-18 A. Ayriyan , D. Blaschke , A. G. Grunfeld , D. Alvarez-Castillo , H. Grigorian , V. Abgaryan

We have studied the effect of tidal deformability constraint given by the binary neutron star merger event GW170817 on the equations of state (EOS) of hybrid stars. The EOS are constructed by matching the hadronic EOS described by…

高能天体物理现象 · 物理学 2018-04-25 Rana Nandi , Prasanta Char

With the first observation of a binary neutron star merger through gravitational waves and light GW170817, compact binary mergers have now taken the center stage in nuclear astrophysics. They are thought to be one of the main astrophysical…

高能天体物理现象 · 物理学 2020-02-11 David Radice , Sebastiano Bernuzzi , Albino Perego

Motivated by the historical detection of gravitational waves from GW170817, the neutron star and the neutron drop, i.e., a certain number of neutrons confined in an external field, are systematically investigated by ab initio calculations…

核理论 · 物理学 2020-03-18 Hui Tong , Peng-Wei Zhao , Jie Meng

The question "what is the observable electromagnetic (EM) signature of a compact binary merger?" is an intriguing one with crucial consequences to the quest for gravitational waves (GW). Compact binary mergers are prime sources of GW,…

高能天体物理现象 · 物理学 2015-03-18 Ehud Nakar , Tsvi Piran

The observation of GW170817 binary neutron star (BNS) merger event has imposed strong bounds on the speed of gravitational waves (GWs) locally, inferring that the speed of GWs propagation is equal to the speed of light. Current GW detectors…

广义相对论与量子宇宙学 · 物理学 2020-03-10 Alexander Bonilla , Rocco D'Agostino , Rafael C. Nunes , José C. N. de Araujo

The joint detection of the gravitational wave (GW) event GW170817 and the short-duration gamma-ray burst (SGRB) event GRB 170817A, marked the beginning of GW multi-messenger astronomy and confirmed that binary neutron star mergers are…

高能天体物理现象 · 物理学 2024-05-31 Luyanda Mazwi , Soebur Razzaque , Lutendo Nyadzani

It seems that the wealth of information revealed by the multi-messenger observations of the binary neutron star (NS) merger event, GW170817/GRB 170817A/kilonova AT2017gfo, places irreconcilable constraints to models of the prompt emission…

高能天体物理现象 · 物理学 2023-08-16 Shuang Du , Tingting Lin , Shujin Hou , Renxin Xu

Observations of heavy (${\simeq}2\,M_\odot$) neutron stars in addition to the recent measurement of tidal deformability from the binary neutron-star merger GW170817, place interesting constraints on theories of dense matter. Current and…

高能天体物理现象 · 物理学 2018-08-29 M. Sieniawska , M. Bejger , B. Haskell

In order to extract information about the properties of compact binaries, we must estimate the noise power spectral density of gravitational-wave data, which depends on the properties of the gravitational-wave detector. In practice, it is…

天体物理仪器与方法 · 物理学 2020-06-18 Colm Talbot , Eric Thrane

The gravitational-wave signal from the merger of two neutron stars cannot be easily differentiated from the signal produced by a comparable-mass mixed binary of a neutron star and a black hole. Indeed, both binary types can account for the…

高能天体物理现象 · 物理学 2020-04-24 Hsin-Yu Chen , Katerina Chatziioannou

Third-generation gravitational wave (GW) observatories such as the Einstein Telescope (ET) and Cosmic Explorer (CE) will detect hundreds of thousands of binary neutron star (BNS) mergers, reaching redshifts beyond $z\sim3$. To fully exploit…

高能天体物理现象 · 物理学 2026-01-14 S. Bisero , S. D. Vergani , E. Loffredo , M. Branchesi , N. Hazra , U. Dupletsa , R. I. Anderson

Radio pulsar observations probe the lives of Galactic double neutron-star (DNS) systems while gravitational waves enable us to study extragalactic DNS in their final moments. By combining measurements from radio and gravitational-wave…

高能天体物理现象 · 物理学 2021-04-09 Shanika Galaudage , Christian Adamcewicz , Xing-Jiang Zhu , Simon Stevenson , Eric Thrane

We investigate the constraints on the neutron star equation of state (EoS) and nuclear properties achievable with third-generation gravitational wave detectors using the Fisher information matrix approach within the relativistic mean field…

高能天体物理现象 · 物理学 2026-05-29 Zhenyu Zhu , Richard O'Shaughnessy