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Related papers: Core collapse supernovae: magnetorotational explos…

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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…

Astrophysics · Physics 2009-11-10 N. V. Ardeljan , G. S. Bisnovatyi-Kogan , S. G. Moiseenko

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…

High Energy Astrophysical Phenomena · Physics 2014-08-12 G. S. Bisnovatyi-Kogan , S. G. Moiseenko , N. V. Ardeljan

We present 2D results of simulations of the magnetorotational core collapsed supernova. For the first time we obtain strong explosion for the core collapsed supernova. In 2D approximation we show that amplification of the toroidal magnetic…

Astrophysics · Physics 2007-05-23 S. G. Moiseenko , G. S. Bisnovatyi-Kogan , N. V. Ardeljan

The idea of the magnetorotational explosion mechanism is that the energy of rotation of the neutron star formed in the course of a collapse is transformed into the energy of an expanding shock wave by means of a magnetic field. In the…

High Energy Astrophysical Phenomena · Physics 2019-04-01 G. S. Bisnovatyi-Kogan , S. G. Moiseenko , N. V. Ardelyan

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…

Astrophysics · Physics 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…

Astrophysics · Physics 2007-05-23 S. G. Moiseenko , G. S. Bisnovatyi-Kogan , N. V. Ardeljan

Results of 2D simulations of the magnetorotational mechanism of supernova type II are presented. Amplification of toroidal magnetic field of the star due to differential rotation of the star leads to the transformation of the rotational…

Astrophysics · Physics 2007-05-23 S. G. Moiseenko , G. S. Bisnovatyi-Kogan , N. V. Ardeljan

Magnetic fields can play a major role in the dynamics of outstanding explosions associated to violent events such as GRBs and hypernovae, since they provide a natural mechanism to harness the rotational energy of the central proto-neutron…

High Energy Astrophysical Phenomena · Physics 2021-08-04 Matteo Bugli , Jérôme Guilet , Martin Obergaulinger

Core-collapse supernovae are the terminal explosions of massive stars. After successive phases of nuclear fusion proceeding up to silicon burning, these stars form an iron core that is supported by electron degeneracy pressure. The core…

High Energy Astrophysical Phenomena · Physics 2026-05-27 B. Mueller , B. Sykes

We have analyzed the magnetic effects that may occur in rapidly rotating core collapse supernovae. We consider effects from both magnetic turbulence and the formation of magnetic bubbles. For magnetic turbulence we have made a perturbative…

Astrophysics · Physics 2009-11-13 J. R. Wilson , G. J. Mathews , H. E. Dalhed

Core-collapse supernova explosions are driven by a central engine that converts a small fraction of the gravitational binding energy released during core collapse to outgoing kinetic energy. The suspected mode for this energy conversion is…

High Energy Astrophysical Phenomena · Physics 2017-12-25 Evan O'Connor , C. J. Horowitz , Zidu Lin , Sean Couch

Magnetorotational supernovae are a rare type of core-collapse supernovae where the magnetic field and rotation play a central role in the dynamics of the explosion. We present the post-processed nucleosynthesis of state-of-the-art…

High Energy Astrophysical Phenomena · Physics 2022-11-30 Moritz Reichert , Martin Obergaulinger , Miguel-Angel Aloy , Michael Gabler , Almudena Arcones , Friedrich-Karl Thielemann

The mechanism of core-collapse supernova explosions must draw on the energy provided by gravitational collapse and transfer the necessary fraction to the kinetic and internal energy of the ejecta. Despite many decades of concerted…

High Energy Astrophysical Phenomena · Physics 2009-11-19 C. D. Ott

We review some of the reasons for believing that the generic core-collapse supernova is neutrino-driven, not MHD-jet driven. We include a discussion of the possible role of rotation in supernova blast energetics and morphology, and…

Astrophysics · Physics 2007-05-23 Adam Burrows , Rolf Walder , Christian D. Ott , Eli Livne

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…

High Energy Astrophysical Phenomena · Physics 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 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…

Astrophysics · Physics 2011-02-11 Adam Burrows , Luc Dessart , Eli Livne , Christian D. Ott , Jeremiah Murphy

The death of massive stars is shrouded in many mysteries. One of them is the mechanism that overturns the collapse of the degenerate iron core into an explosion, a process that determines the supernova explosion energy, properties of the…

High Energy Astrophysical Phenomena · Physics 2020-12-23 Ondřej Pejcha

We explore a possible scenario of the explosion as a result of core collapses of rotating massive stars that leave a black hole by performing a radiation-viscous-hydrodynamics simulation in numerical relativity. We take moderately and…

High Energy Astrophysical Phenomena · Physics 2023-09-06 Sho Fujibayashi , Yuichiro Sekiguchi , Masaru Shibata , Shinya Wanajo

Results of 2D numerical simulation of magnetorotational mechanism of supernova explosion are presented. It is shown that due to the differential rotation of the star toroidal component of magnetic field appears and grows with time. Angular…

Astrophysics · Physics 2007-05-23 N. V. Ardeljan , G. S. Bisnovatyi-Kogan , S. G. Moiseenko

We studied roles of a turbulent resistivity in the core-collapse of a strongly magnetized massive star, carrying out 2D-resistive-MHD simulations. The three cases with different initial strengths of magnetic field and rotation are…

High Energy Astrophysical Phenomena · Physics 2015-06-12 Hidetomo Sawai , Shoichi Yamada , Kei Kotake , Hideyuki Suzuki
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