中文
相关论文

相关论文: Secular Outflows from 3D-MHD Hypermassive Neutron …

200 篇论文

Short gamma-ray bursts require a rotating black hole, surrounded by a magnetized relativistic accretion disk, such as the one formed by coalescing binary neutron stars or neutron star - black hole systems. The accretion onto a Kerr black…

高能天体物理现象 · 物理学 2019-09-25 Agnieszka Janiuk

The binary-driven hypernova (BdHN) model proposes long gamma-ray bursts (GRBs) originate in binaries composed of a carbon-oxygen (CO) star and a neutron star (NS) companion. The CO core collapse generates a newborn NS and a supernova that…

高能天体物理现象 · 物理学 2024-10-03 L. M. Becerra , F. Cipolletta , C. L. Fryer , Débora P. Menezes , Constança Providência , J. A. Rueda , R. Ruffini

We present a detailed, 3D hydrodynamics study of the neutrino-driven winds that emerge from the remnant of a NS merger. Our simulations are performed with the Newtonian, Eulerian code FISH, augmented by a detailed, spectral neutrino leakage…

Kilonovae, one source of electromagnetic emission associated with neutron star mergers, are powered by the decay of radioactive isotopes in the neutron-rich merger ejecta. Models for kilonova emission consistent with the electromagnetic…

Rapidly rotating magnetars have been associated with gamma-ray bursts (GRBs) and super-luminous supernovae (SLSNe). Using a suite of 2D magnetohydrodynamic simulations at fixed neutrino luminosity and a couple of evolutionary models with…

高能天体物理现象 · 物理学 2023-10-24 Tejas Prasanna , Matthew S. B. Coleman , Matthias J. Raives , Todd A. Thompson

Star clusters appear to be the ideal environment for the assembly of neutron star-neutron star (NS-NS) and black hole-neutron star (BH-NS) binaries. These binaries are among the most interesting astrophysical objects, being potential…

星系天体物理 · 物理学 2020-09-30 Giacomo Fragione , Sambaran Banerjee

Black hole-neutron star (BHNS) binaries are amongst promising candidates for the joint detection of electromagnetic (EM) signals with gravitational waves (GWs) and are expected to be detected in the near future. Here we study the effect of…

高能天体物理现象 · 物理学 2021-12-22 Mukul Bhattacharya , Pawan Kumar , George Smoot

Binary neutron star mergers can form short-lived magnetar-like remnants whose magnetically dominated polar towers reach $B\sim10^{15}$--$10^{16}\,\mathrm{G}$, but the microphysical composition of these outflows remains poorly understood.…

高能天体物理现象 · 物理学 2026-05-26 Rostom Mbarek , Jiaxi Wu , Elias R. Most

Supernova models with a full spectral treatment of the neutrino transport are presented, employing the Prometheus/Vertex neutrino-hydrodynamics code with a ``ray-by-ray plus'' approximation for treating two- (or three-) dimensional…

天体物理学 · 物理学 2008-11-26 R. Buras , M. Rampp , H. -Th. Janka , K. Kifonidis

Magnetohydrodynamic (MHD) turbulence in neutron star (NS) merger remnants can impact their evolution and multimessenger signatures, complicating the interpretation of present and future observations. Due to the high Reynolds numbers and the…

高能天体物理现象 · 物理学 2020-07-30 David Radice

We study the long-term evolution of ejecta formed in a binary neutron star (BNS) merger that results in a long-lived remnant NS by performing a hydrodynamics simulation with the outflow data of a numerical relativity simulation as the…

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

Models of core-collapse supernova explosions powered by the neutrino-driven mechanism have matured considerable in recent years. Explosions at the low-mass end of the progenitor spectrum can routinely be simulated in 1D, 2D, and 3D and…

太阳与恒星天体物理 · 物理学 2016-10-05 B. Müller

The remnant resulting from the merger of two neutron stars produces neutrinos in copious amounts. In this paper we present the neutrino emission results obtained via Newtonian, high-resolution simulations of the coalescence event. These…

天体物理学 · 物理学 2011-07-18 S. Rosswog , M. Liebendoerfer

Recently, the direct detection of gravitational waves from black hole (BH) mergers was announced by the Advanced LIGO Collaboration. Multi-messenger counterparts of stellar-mass BH mergers are of interest, and it had been suggested that a…

高能天体物理现象 · 物理学 2016-04-29 Kohta Murase , Kazumi Kashiyama , Peter Meszaros , Ian Shoemaker , Nicholas Senno

We perform hydrodynamic supernova simulations in spherical symmetry for over 100 single stars of solar metallicity to explore the progenitor-explosion and progenitor-remnant connections established by the neutrino-driven mechanism. We use…

太阳与恒星天体物理 · 物理学 2015-06-05 Marcella Ugliano , H. -Thomas Janka , Andreas Marek , Almudena Arcones

We report results from a series of three-dimensional (3D) rotational core-collapse simulations for $11.2$ and 27 $M_{/odot}$ stars employing neutrino transport scheme by the isotropic diffusion source approximation. By changing the initial…

高能天体物理现象 · 物理学 2016-07-13 Tomoya Takiwaki , Kei Kotake , Yudai Suwa

A binary neutron star (BNS) merger can lead to various outcomes, from indefinitely stable neutron stars, through supramassive (SMNS) or hypermassive (HMNS) neutron stars supported only temporarily against gravity, to black holes formed…

高能天体物理现象 · 物理学 2021-10-27 Paz Beniamini , Wenbin Lu

Binary neutron star (NS) mergers are among the most promising sources of gravitational waves (GWs), as well as candidate progenitors for short Gamma-Ray Bursts (SGRBs). Depending on the total initial mass of the system, and the NS equation…

高能天体物理现象 · 物理学 2015-06-22 Simone Dall'Osso , Bruno Giacomazzo , Rosalba Perna , Luigi Stella

Recent discoveries of gravitational wave (GW) events most likely originating from black hole (BH) + neutron star (NS) mergers reveal the existence of BH+NS binaries. The formation of BH+NS binaries and their merger rates through isolated…

高能天体物理现象 · 物理学 2023-03-15 Long Jiang , Wen-Cong Chen , Thomas M. Tauris , Bernhard Muller , Xiang-Dong Li

Hypernebulae are inflated by accretion-powered winds accompanying hyper-Eddington mass transfer from an evolved post-main sequence star onto a black hole or neutron star companion. The ions accelerated at the termination shock -- where the…

高能天体物理现象 · 物理学 2024-01-02 Navin Sridhar , Brian D. Metzger , Ke Fang
‹ 上一页 1 8 9 10 下一页 ›