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相关论文: On GW170817 and the Galactic Binary Neutron Star P…

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We study the gravitational-wave trigger GW231109_235456, a sub-threshold binary neutron star merger candidate observed in the first part of the fourth observing run of the LIGO-Virgo-KAGRA collaboration. Assuming the trigger is of…

高能天体物理现象 · 物理学 2025-10-28 Thibeau Wouters , Anna Puecher , Peter T. H. Pang , Tim Dietrich

As technology has improved, binary neutron star systems have been observed more frequently, in fact, the first gravitational wave to have an electromagnetic counterpart originated from the merger of two neutron stars (GW170817). Detecting…

天体物理仪器与方法 · 物理学 2022-11-18 Jeshwanth Mohan

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,…

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

The LIGO-Virgo Collaboration has announced the detection of GW170817 and has associated it with GRB 170817A. These signals have been followed after 11 hours by the optical and infrared emission of AT 2017gfo. The origin of this complex…

高能天体物理现象 · 物理学 2018-10-17 J. A. Rueda , R. Ruffini , Y. Wang , U. Barres de Almeida , C. L. Bianco , Y. Chen , R. V. Lobato , C. Maia , D. Primorac , R. Moradi , J. F. Rodriguez

The simultaneous detection of gravitational waves and light from the binary neutron star merger GW170817 led to independent measurements of distance and redshift, providing a direct estimate of the Hubble constant $H_0$ that does not rely…

高能天体物理现象 · 物理学 2022-05-20 Mattia Bulla , Michael W. Coughlin , Suhail Dhawan , Tim Dietrich

We investigate the long-term evolution and observability of remnants originating from the merger of compact binary systems and discuss the differences to supernova remnants. Compact binary mergers expel much smaller amounts of mass at much…

天体物理学 · 物理学 2008-11-26 W. Domainko , M. Ruffert

The association of GRB170817A with GW170817 has confirmed the long-standing hypothesis that binary neutron star (BNS) mergers are the progenitors of at least some short gamma-ray bursts (SGRBs). This connection has ushered in an era in…

高能天体物理现象 · 物理学 2021-09-08 Davide Lazzati , Rosalba Perna , Riccardo Ciolfi , Bruno Giacomazzo , Diego Lopez-Camara , Brian Morsony

The multi-messenger detection of the gravitational-wave signal GW170817, the corresponding kilonova AT2017gfo and the short gamma-ray burst GRB170817A, as well as the observed afterglow has delivered a scientific breakthrough. For an…

Recent follow-up observations of the binary neutron star (NS) merging event GW170817/SGRB 170817A reveal that its X-ray/optical/radio emissions are brightening continuously up to $\sim 100$ days post-merger. This late-time brightening is…

高能天体物理现象 · 物理学 2018-04-02 Jin-Jun Geng , Zi-Gao Dai , Yong-Feng Huang , Xue-Feng Wu , Long-Biao Li , Bing Li , Yan-Zhi Meng

Mergers of double neutron stars (DNSs) could lead to the formation of a long-lived massive remnant NS, which has been previously suggested to explain the AT 2017gfo kilonova emission in the famous GW170817 event. For an NS-affected…

高能天体物理现象 · 物理学 2021-10-27 Guang-Lei Wu , Yun-Wei Yu , Jin-Ping Zhu

For the first time, a short gamma-ray burst (GRB) was unambiguously associated with a gravitational wave (GW) observation from a binary neutron star (NS) merger. This allows us to link the details of the central engine properties to GRB…

Compact binary mergers may have already been observed as they are the leading model for short gamma-ray bursts (sGRBs). Radioactive decay within the ejecta from these mergers is expected to produce an infra-red flare, dubbed macronova (or…

高能天体物理现象 · 物理学 2016-03-16 Assaf Horesh , Kenta Hotokezaka , Tsvi Piran , Ehud Nakar , Paul Hancock

We present new (3+1)D numerical relativity simulations of the binary neutron star (BNS) merger and postmerger phase. We focus on a previously inaccessible region of the binary parameter space spanning the binary's mass-ratio…

广义相对论与量子宇宙学 · 物理学 2017-02-01 Tim Dietrich , Maximiliano Ujevic , Wolfgang Tichy , Sebastiano Bernuzzi , Bernd Bruegmann

The joint detection of GW 170817 and GRB 170817A indicated that at least a fraction of short gamma ray bursts (SGRBs) originate from binary neutron star (BNS) mergers. One possible remnant of a BNS merger is a rapidly rotating, strongly…

高能天体物理现象 · 物理学 2020-02-26 Liang-Duan Liu , He Gao , Bing Zhang

Neutron star mergers produce a substantial amount of fast-moving ejecta, expanding outwardly for years after the merger. The interaction of these ejecta with the surrounding medium may produce a weak isotropic radio remnant, detectable in…

GW170817 is the first binary neutron star merger detected with gravitational and electromagnetic waves, and its afterglow is still detectable 7 years post-merger. Some previous studies of the X-ray afterglow have claimed the onset of a new…

高能天体物理现象 · 物理学 2025-04-17 Aman Katira , Kunal P. Mooley , Kenta Hotokezaka

The binary neutron star merger GW170817/GRB170817A confirmed that at least some neutron star mergers are the progenitors of short gamma-ray bursts. Many short gamma-ray bursts have long-term x-ray afterglows that have been interpreted in…

高能天体物理现象 · 物理学 2019-09-04 Paul D. Lasky , Nikhil Sarin , Greg Ashton

The recent discovery of a faint gamma-ray burst (GRB) coincident with the gravitational wave (GW) event GW 170817 revealed the existence of a population of low-luminosity short duration gamma-ray transients produced by neutron star mergers…

高能天体物理现象 · 物理学 2018-11-21 E. Troja , G. Ryan , L. Piro , H. van Eerten , S. B. Cenko , Y. Yoon , S. -K. Lee , M. Im , T. Sakamoto , P. Gatkine , A. Kutyrev , S. Veilleux

The gravitational waves from the first binary neutron star merger, GW170817, were accompanied by a multi-wavelength electromagnetic counterpart, from $\gamma$-rays to radio. The accompanying gamma-rays, seems at first to confirm the…

高能天体物理现象 · 物理学 2018-10-31 Ehud Nakar , Ore Gottlieb , Tsvi Piran , Mansi M. Kasliwal , Greg Hallinan