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相关论文: End-to-end kilonova models of neutron-star mergers…

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Mergers of binary neutron stars (NSs) usually result in the formation of a hypermassive neutron star (HMNS). Whether- and when this remnant collapses to a black hole (BH) depends primarily on the equation of state and on angular momentum…

高能天体物理现象 · 物理学 2015-06-18 Brian D. Metzger , Rodrigo Fernández

We study long-term evolution of the matter ejected in a black-hole neutron-star (BH-NS) merger employing the results of a long-term numerical-relativity simulation and nucleosynthesis calculation, in which both dynamical and post-merger…

We investigate the ejecta from black hole - neutron star mergers by modeling the formation and interaction of mass ejected in a tidal tail and a disk wind. The outflows are neutron-rich, giving rise to optical/infrared emission powered by…

高能天体物理现象 · 物理学 2017-07-26 Rodrigo Fernández , Francois Foucart , Daniel Kasen , Jonas Lippuner , Dhruv Desai , Luke F. Roberts

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

We study kilonova emission from binary neutron star (BNS) mergers for the case that a remnant massive neutron star (MNS) forms and collapses to a black hole within $20$ ms after the onset of the merger (which we refer to as "a short-lived…

高能天体物理现象 · 物理学 2023-06-13 Kyohei Kawaguchi , Sho Fujibayashi , Nanae Domoto , Kenta Kiuchi , Masaru Shibata , Shinya Wanajo

Fast material ejected dynamically over $<10$ ms during the merger of a binary neutron-star (BNS) system can give rise to distinctive electromagnetic counterparts to the system's gravitational-wave emission that can serve as a "smoking gun"…

高能天体物理现象 · 物理学 2023-03-23 Luciano Combi , Daniel M. Siegel

We investigate the kilonova emission resulting from outflows produced in a three-dimensional (3D) general-relativistic magnetohydrodynamic (GRMHD) simulation of a hypermassive neutron star (HMNS) remnant. We map the outflows into the FLASH…

高能天体物理现象 · 物理学 2025-11-18 Lieke Sippens Groenewegen , Sanjana Curtis , Philipp Mösta , Daniel Kasen , Daniel Brethauer

We investigate the nucleosynthesis and kilonova emission based on numerical-relativity binary neutron star merger simulations that incorporate a two-moment neutrino-transport scheme. Unlike in previous works with simpler neutrino…

The mergers of double neutron star (NS-NS) and black hole (BH)-NS binaries are promising gravitational wave (GW) sources for Advanced LIGO and future GW detectors. The neutron-rich ejecta from such merger events undergoes rapid neutron…

高能天体物理现象 · 物理学 2017-07-19 Brian D. Metzger

Black hole - neutron star (BH-NS) mergers are a major target for ground-based gravitational wave (GW) observatories. A merger can also produce an electromagnetic counterpart (a kilonova) if it ejects neutron-rich matter that assembles into…

高能天体物理现象 · 物理学 2021-08-26 Siva Darbha , Daniel Kasen , Francois Foucart , Daniel J. Price

A multi-messenger, black hole (BH) - neutron star (NS) merger event still remains to be detected. The tidal (dynamical) ejecta from such an event, thought to produce a kinonova, is concentrated in the equatorial plane and occupies only part…

高能天体物理现象 · 物理学 2023-09-08 Yan Li , Rong-Feng Shen

We present a semi-analytic model for predicting kilonova light curves from the mergers of neutron stars with black holes (NSBH). The model is integrated into the MOSFiT platform, and can generate light curves from input binary properties…

高能天体物理现象 · 物理学 2023-10-02 B. P. Gompertz , M. Nicholl , J. C. Smith , S. Harisankar , G. Pratten , P. Schmidt , G. P. Smith

We present a comprehensive study of r-process element nucleosynthesis in the ejecta of compact binary mergers (CBMs) and their relic black-hole (BH)-torus systems. The evolution of the BH-accretion tori is simulated for seconds with a…

太阳与恒星天体物理 · 物理学 2015-10-13 Oliver Just , Andreas Bauswein , Ricard Ardevol Pulpillo , Stephane Goriely , H. -Thomas Janka

Several gamma ray bursts have recently been associated with a kilonova emission. We study the mechanisms which could account for this effect, by means of radioactive decay of elements synthesized in accretion disk wind. We model the…

高能天体物理现象 · 物理学 2026-03-18 Agnieszka Janiuk , Joseph Saji , Gerardo Urrutia

We present the first comprehensive study of r-process element nucleosynthesis in the ejecta of compact binary mergers (CBMs) and their relic black-hole (BH)-torus systems. The evolution of the BH-accretion tori is simulated for seconds with…

太阳与恒星天体物理 · 物理学 2015-06-19 Oliver Just , Andreas Bauswein , Ricard Ardevol Pulpillo , Stephane Goriely , H. -Thomas Janka

Along with binary neutron star mergers, the in-spiral and merger of a black hole and a neutron star is a predicted site of $r$-process nucleosynthesis and associated kilonovae. For the right mass ratio, very large amounts of neutron rich…

高能天体物理现象 · 物理学 2023-03-30 Sanjana Curtis , Jonah M. Miller , Carla Frohlich , Trevor Sprouse , Nicole Lloyd-Ronning , Matthew Mumpower

When binary systems of neutron stars merge, a very small fraction of their rest mass is ejected, either dynamically or secularly. This material is neutron-rich and its nucleosynthesis could provide the astrophysical site for the production…

广义相对论与量子宇宙学 · 物理学 2017-12-13 Luke Bovard , Dirk Martin , Federico Guercilena , Almudena Arcones , Luciano Rezzolla , Oleg Korobkin

The coalescence of double neutron star (NS-NS) and black hole (BH)-NS binaries are prime sources of gravitational waves (GW) for Advanced LIGO/Virgo and future ground-based detectors. Neutron-rich matter released from such events undergo…

高能天体物理现象 · 物理学 2020-01-08 Brian D. Metzger

Magnetized hypermassive neutron stars (HMNSs) have been proposed as a way for neutron star (NS) mergers to produce high electron fraction, high velocity ejecta, as required by kilonova models to explain the observed light curve of GW170817.…

高能天体物理现象 · 物理学 2023-09-01 Steven Fahlman , Rodrigo Fernández , Sharon Morsink

Over the last few years, there has been an increasing interest in sub-solar mass black holes due to their potential to provide valuable information about cosmology or the black hole population. Motivated by this, we study observable…

广义相对论与量子宇宙学 · 物理学 2025-06-10 Ivan Markin , Anna Neuweiler , Adrian Abac , Swami Vivekanandji Chaurasia , Maximiliano Ujevic , Mattia Bulla , Tim Dietrich
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