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The recent discovery of the neutron star merger and multi-messenger event GW170817 (also known as kilonova GRB170817A) provides an unprecedented laboratory in which to study these mysterious objects, as well as an opportunity to test…

高能天体物理现象 · 物理学 2019-01-01 Samar Safi-Harb , Neil Doerksen , Adam Rogers , Chris L. Fryer

We present the first direct comparison of numerical simulations of neutron star-black hole and black hole-black hole mergers in full general relativity. We focus on a configuration with non spinning objects and within the most likely range…

Observations of black hole-neutron star (BH-NS) mergers via gravitational waves (GWs) are of great interest for their electromagnetic counterparts, such as short gamma-ray bursts, and could provide crucial information on the nature of BHs…

星系天体物理 · 物理学 2019-10-23 Giacomo Fragione , Abraham Loeb

In recent years, there have been significant advances in multi-messenger astronomy due to the discovery of the first, and so far only confirmed, gravitational wave event with a simultaneous electromagnetic (EM) counterpart, as well as…

The environment surrounding supermassive black holes (SMBHs) in galactic nuclei (GNs) is expected to harbour stellar-mass binary black hole (BBH) populations. These binaries were suggested to form a hierarchical triple system with the SMBH,…

高能天体物理现象 · 物理学 2022-12-21 László Gondán

The successful joint observation of the gravitational wave event GW170817 and its multi-wavelength electromagnetic counterparts first enables human to witness a definite merger event of two neutron stars (NSs). This historical event…

高能天体物理现象 · 物理学 2018-07-25 Yun-Wei Yu , Liang-Duan Liu , Zi-Gao Dai

We explore the electromagnetic counterparts that will associate with binary neutron star mergers for the case that remnant massive neutron stars survive for $\gtrsim 0.5\,$s after the merger. For this study, we employ the outflow profiles…

高能天体物理现象 · 物理学 2022-08-31 Kyohei Kawaguchi , Sho Fujibayashi , Kenta Hotokezaka , Masaru Shibata , Shinya Wanajo

We investigate $r$-process nucleosynthesis and kilonova emission resulting from binary neutron star (BNS) mergers based on a three-dimensional (3D) general-relativistic magnetohydrodynamic (GRMHD) simulation of a hypermassive neutron star…

高能天体物理现象 · 物理学 2022-11-16 Sanjana Curtis , Philipp Mösta , Zhenyu Wu , David Radice , Luke Roberts , Giacomo Ricigliano , Albino Perego

Neutron star$-$black hole (NS$-$BH) coalescences are widely believed to be promising gravitational wave sources in the era of advanced detectors of LIGO/Virgo but such binaries have never been directly detected yet. Evidence for NS$-$BH…

高能天体物理现象 · 物理学 2017-08-02 Xiang Li , Yi-Ming Hu , Zhi-Ping Jin , Yi-Zhong Fan , Da-Ming Wei

The LIGO-Virgo-KAGRA Collaboration recently detected gravitational waves (GWs) from the merger of black-hole-neutron-star (BHNS) binary systems GW200105 and GW200115. No coincident electromagnetic (EM) counterparts were detected. While the…

高能天体物理现象 · 物理学 2022-03-14 Daniel J. D'Orazio , Zoltan Haiman , Janna Levin , Johan Samsing , Alejandro Vigna-Gomez

We identify new astrophysical signatures of dark matter that implodes neutron stars (NSs), which could decisively test whether NS-imploding dark matter is responsible for missing pulsars in the Milky Way galactic center, the source of some…

高能物理 - 唯象学 · 物理学 2018-03-28 Joseph Bramante , Tim Linden , Yu-Dai Tsai

The coalescence of binary neutron stars can yield the expulsion of a fast-moving, quasi-isotropic material, which may induce thermal radiation and give rise to kilonova emission. Moreover, the interaction between the ejected material and…

高能天体物理现象 · 物理学 2024-02-29 Shao-Ze Li , Yun-Wei Yu , He Gao , Lin Lan

Short duration Gamma-Ray Bursts are thought to originate from the coalescence of neutron stars in binary systems. They are detected as a brief ($<$ 2s), intense flash of gamma-ray radiation followed by a weaker, rapidly decreasing…

高能天体物理现象 · 物理学 2016-06-10 K. Siellez , M. Boer , B. Gendre , T. Regimbau

GRB 060505 was the first well-known nearby (at redshift 0.089) "hybrid" gamma-ray burst that has a duration longer than 2 seconds but without the association of a supernova down to very stringent limits. The prompt $\gamma-$ray flash…

高能天体物理现象 · 物理学 2021-09-17 Zhi-Ping Jin , Hao Zhou , Stefano Covino , Neng-Hui Liao , Xiang Li , Lei Lei , Paolo D'Avanzo , Yi-Zhong Fan , Da-Ming Wei

Current template-based gravitational-wave searches for compact binary mergers neglect the general relativistic phenomenon of spin-induced orbital precession. Owing to their asymmetric masses, gravitational-waves from neutron star-black hole…

高能物理 - 实验 · 物理学 2026-01-28 Ian Harry , Charlie Hoy

LSST's wide-field of view and sensitivity will revolutionize studies of the transient sky by finding extraordinary numbers of new transients every night. The recent discovery of a kilonova counterpart to LIGO/Virgo's first detection of…

高能天体物理现象 · 物理学 2019-02-15 Graham P. Smith , Andrew Robertson , Matteo Bianconi , Mathilde Jauzac

In the era of multi-messenger astronomy, early classification of photometric alerts from wide-field and high-cadence surveys is a necessity to trigger spectroscopic follow-ups. These classifications are expected to play a key role in…

天体物理仪器与方法 · 物理学 2023-11-09 Biswajit Biswas , Junpeng Lao , Eric Aubourg , Alexandre Boucaud , Axel Guinot , Emille E. O. Ishida , Cécile Roucelle

A black-hole neutron-star binary merger can lead to an electromagnetic counterpart called a kilonova if the neutron star is disrupted prior to merger. The observability of a kilonova depends on the amount of neutron star ejecta, which is…

高能天体物理现象 · 物理学 2023-02-03 Nathan Steinle , Benjamin P. Gompertz , Matt Nicholl

The discovery of gravitational waves from compact objects coalescence opens a brand-new window to observe the universe. With more events being detected in the future, statistical examinations would be essential to better understand the…

高能天体物理现象 · 物理学 2020-03-31 Shao-Peng Tang , Hao Wang , Yuan-Zhu Wang , Ming-Zhe Han , Yi-Zhong Fan , Da-Ming Wei

The discovery of the compact binary coalescence in both gravitational waves and electromagnetic radiation marks a breakthrough in the field of multi-messenger astronomy and has improved our knowledge in a number of research areas. However,…

高能天体物理现象 · 物理学 2019-11-15 Michael W. Coughlin , Tim Dietrich
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