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The impact of the magnetic field on postbounce supernova dynamics of non-rotating stellar cores is studied by performing three-dimensional magnetohydrodynamics simulations with spectral neutrino transport. The explodability of strongly and…

高能天体物理现象 · 物理学 2022-08-19 Jin Matsumoto , Yuta Asahina , Tomoya Takiwaki , Kei Kotake , Hiroyuki R. Takahashi

We discuss results of 2D simulations of magnetorotational(MR) mechanism of core collapse supernova explosions. Due to the nonuniform collapse the collapsed core rotates differentially. In the presence of initial poloidal magnetic field its…

天体物理学 · 物理学 2009-06-23 S. G. Moiseenko , G. S. Bisnovatyi-Kogan

We present results of 2D simulation of magnetorotational (MR) supernova accompanied by jet formation in the core collapse supernova explosion. Initial magnetic field used in the simulations has dipole-like symmetry. Contrary to the…

天体物理学 · 物理学 2007-05-23 S. G. Moiseenko , G. S. Bisnovatyi-Kogan , N. V. Ardeljan

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

We study the effects of the magnetic field on the dynamics of non-rotating stellar cores by performing two-dimensional (2D), magnetohydrodynamics (MHD) simulations. To this end, we have updated our neutrino-radiation-hydrodynamics supernova…

高能天体物理现象 · 物理学 2020-10-07 Jin Matsumoto , Tomoya Takiwaki , Kei Kotake , Yuta Asahina , Hiroyuki R. Takahashi

We present the results of 2D simulations of the magnetorotational model of a supernova explosion. After the core collapse the core consists of rapidly a rotating proto-neutron star and a differentially rotating envelope. The toroidal part…

天体物理学 · 物理学 2009-11-10 N. V. Ardeljan , G. S. Bisnovatyi-Kogan , S. G. Moiseenko

We perform three-dimensional simulations of magnetorotational supernovae using a $39\,M_{\odot}$ progenitor star with two different initial magnetic field strengths of $10^{10}$ G and $10^{12}$ G in the core. Both models rapidly undergo…

高能天体物理现象 · 物理学 2023-05-10 Jade Powell , Bernhard Mueller , David R. Aguilera-Dena , Norbert Langer

We present three-dimensional hydrodynamic and magnetohydrodynamic core-collapse supernova simulations of a rapidly rotating, high-compactness $39 M_\odot$ progenitor to investigate the roles of rotation and magnetic fields in shock revival…

高能天体物理现象 · 物理学 2026-05-19 Liubov Kovalenko , Evan O'Connor , Haakon Andresen , Sean M. Couch

We present here the first 2D rotating, multi-group, radiation magnetohydrodynamics (RMHD) simulations of supernova core collapse, bounce, and explosion. In the context of rapid rotation, we focus on the dynamical effects of magnetic…

天体物理学 · 物理学 2011-02-11 Adam Burrows , Luc Dessart , Eli Livne , Christian D. Ott , Jeremiah Murphy

Core-collapse supernovae are accompanied by formation of neutron stars. The gravitation energy is transformed into the energy of the explosion, observed as SN II, SN Ib,c type supernovae. We present results of 2-D MHD simulations, where the…

高能天体物理现象 · 物理学 2014-08-12 G. S. Bisnovatyi-Kogan , S. G. Moiseenko , N. V. Ardeljan

We present results from fully general relativistic (GR), three-dimensional (3D), neutrino-radiation magneto-hydrodynamic (MHD) simulations of stellar core collapse of a 20 M$_\odot$ star with spectral neutrino transport. Our focus is to…

高能天体物理现象 · 物理学 2024-08-05 Shota Shibagaki , Takami Kuroda , Kei Kotake , Tomoya Takiwaki , Tobias Fischer

We carried out 2D-axisymmetric MHD simulations of core-collapse supernovae for rapidly-rotating magnetized progenitors. By changing both the strength of the magnetic field and the spatial resolution, the evolution of the magnetorotational…

高能天体物理现象 · 物理学 2016-02-03 Hidetomo Sawai , Shoichi Yamada

We perform five 3D magnetohydrodynamic (MHD) core-collapse supernova simulations for non-rotating progenitors between 9.5 $M_\odot$ and 24 $M_\odot$. Four of the five models produce explosions while one fails. The exploding models are…

高能天体物理现象 · 物理学 2024-12-03 Bailey Sykes , Bernhard Müller

We investigate the influence of magnetic field amplification on the core-collapse supernovae in highly magnetized progenitors through three-dimensional simulations. By considering rotating models, we observe a strong correlation between the…

高能天体物理现象 · 物理学 2023-12-22 Jin Matsumoto , Tomoya Takiwaki , Kei Kotake

We study magnetohydrodynamic (MHD) effects arising in the collapse of magnetized, rotating, massive stellar cores to proto-neutron stars (PNSs). We perform axisymmetric numerical simulations in full general relativity with a hybrid equation…

天体物理学 · 物理学 2008-11-26 Masaru Shibata , Yuk Tung Liu , Stuart L. Shapiro , Branson C. Stephens

We show three-dimensional magnetohydrodynamical simulations of core collapse supernova in which the progenitor has magnetic fields inclined to the rotation axis. The simulations employed a simple empirical equation of state in which the…

天体物理学 · 物理学 2009-11-13 Hayato Mikami , Yuji Sato , Tomoaki Matsumoto , Tomoyuki Hanawa

We present results of new three-dimensional (3D) general-relativistic magnetohydrodynamic simulations of rapidly rotating strongly magnetized core collapse. These simulations are the first of their kind and include a microphysical…

高能天体物理现象 · 物理学 2015-02-18 P. Mösta , S. Richers , C. D. Ott , R. Haas , A. L. Piro , K. Boydstun , E. Abdikamalov , C. Reisswig , E. Schnetter

We present results from an ab initio three-dimensional, multi-physics core collapse supernova simulation for the case of a 15 M progenitor. Our simulation includes multi-frequency neutrino transport with state-of-the-art neutrino…

We investigate the explosion of stars with zero-age main-sequence masses between 20 and 35 solar masses and varying degrees of rotation and magnetic fields including ones commonly considered progenitors of gamma-ray bursts (GRBs). The…

高能天体物理现象 · 物理学 2020-02-21 M. Obergaulinger , M. Á. Aloy

We perform a series of two-dimensional magnetorotational core-collapse simulations of Pop III stars. Changing the initial distributions of rotation and magnetic fields prior to collapse in a parametric manner, we compute 19 models. By so…

天体物理学 · 物理学 2015-05-13 Yudai Suwa , Tomoya Takiwaki , Kei Kotake , Katsuhiko Sato
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