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相关论文: A Neutrino-Driven Core Collapse Supernova Explosio…

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We couple two-dimensional hydrodynamics to detailed one-dimensional multigroup flux-limited diffusion neutrino transport to investigate prompt convection in core collapse supernovae. Our initial conditions, time-dependent boundary…

天体物理学 · 物理学 2007-05-23 A. Mezzacappa , A. C. Calder , S. W. Bruenn , J. M. Blondin , M. W. Guidry , M. R. Strayer , A. S Umar

The gravitational collapse, bounce, the explosion of an iron core of an 11.2 $M_{\odot}$ star is simulated by two-dimensional neutrino-radiation hydrodynamic code. The explosion is driven by the neutrino heating aided by multi-dimensional…

高能天体物理现象 · 物理学 2015-06-18 Yudai Suwa

With exact three-flavor Boltzmann neutrino transport, we simulate the stellar core collapse, bounce, and postbounce evolution of a 13 solar mass star in spherical symmetry, the Newtonian limit, without invoking convection. In the absence of…

We analyse and determine the effects of modest progenitor rotation in the context of core-collapse supernovae by comparing two separate long-duration three-dimensional simulations of 9 M$_{\odot}$ progenitors, one rotating with an initial…

高能天体物理现象 · 物理学 2022-05-04 Matthew S. B. Coleman , Adam Burrows , Christopher J. White

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…

高能天体物理现象 · 物理学 2017-12-25 Evan O'Connor , C. J. Horowitz , Zidu Lin , Sean Couch

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 present the first complete 3-dimensional simulations of the core-collapse of a massive star from the onset of collapse to the resultant supernova explosion. We compare the structure of the convective instabilities that occur in…

天体物理学 · 物理学 2009-11-07 C. L. Fryer , M. S. Warren

For a suite of fourteen core-collapse models during the dynamical first second after bounce, we calculate the detailed neutrino "light" curves expected in the underground neutrino observatories Super-Kamiokande, DUNE, JUNO, and IceCube.…

高能天体物理现象 · 物理学 2018-08-15 Shaquann Seadrow , Adam Burrows , David Vartanyan , David Radice , M. Aaron Skinner

Three-dimensional simulations of core-collapse supernovae are granting new insight into the as-yet uncertain mechanism that drives successful explosions. While there is still debate about whether explosions are obtained more easily in 3D…

高能天体物理现象 · 物理学 2015-06-17 Sean M. Couch , Evan P. O'Connor

We explore the dependence on spatial dimension of the viability of the neutrino heating mechanism of core-collapse supernova explosions. We find that the tendency to explode is a monotonically increasing function of dimension, with 3D…

太阳与恒星天体物理 · 物理学 2014-11-21 J. Nordhaus , A. Burrows , A. Almgren , J. Bell

Multi-dimensional hydrodynamic simulations of the post-bounce evolution of collapsed stellar iron cores have demonstrated that convective overturn between the stalled shock and the neutrinosphere can have an important effect on the…

天体物理学 · 物理学 2007-05-23 H. -Th. Janka

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

The explosion outcome and diagnostics of core-collapse supernovae depend sensitively on the nature of the stellar progenitor, but most studies to date have focused exclusively on one-dimensional, spherically-symmetric massive star…

太阳与恒星天体物理 · 物理学 2022-01-14 David Vartanyan , Matthew S. B. Coleman , Adam Burrows

We conduct three-dimensional hydrodynamical simulations to explore the interaction of jets that a neutron star (NS) companion to a type Ic or type Ib core collapse supernova (CCSN) launches few hours after explosion with the ejecta of the…

高能天体物理现象 · 物理学 2020-09-30 Muhammad Akashi , Noam Soker

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

In this paper, we present results from a simulation of stellar core collapse, bounce, and postbounce evolution with Boltzmann neutrino transport. We motivate the development of our Boltzmann solver in light of the sensitivity of the…

天体物理学 · 物理学 2009-10-31 A. Mezzacappa

The collapse of a massive star's core, followed by a neutrino-driven, asymmetric supernova explosion, can naturally lead to pulsar recoils and neutron star kicks. Here, we present a two-dimensional, radiation-hydrodynamic simulation in…

高能天体物理现象 · 物理学 2015-03-17 J. Nordhaus , T. D. Brandt , A. Burrows , E. Livne , C. D. Ott

We present self-consistent, axisymmetric core-collapse supernova simulations performed with the Prometheus-Vertex code for 18 pre-supernova models in the range of 11-28 solar masses, including progenitors recently investigated by other…

太阳与恒星天体物理 · 物理学 2016-07-06 Alexander Summa , Florian Hanke , Hans-Thomas Janka , Tobias Melson , Andreas Marek , Bernhard Müller

Three-dimensional (3D) simulations in recent years have shown severe difficulties producing 10^51 erg explosions of massive stars with neutrino based mechanisms while on the other hand demonstrated the large potential of mechanical effects,…

太阳与恒星天体物理 · 物理学 2015-06-18 Oded Papish , Jason Nordhaus , Noam Soker

We investigate explosive nucleosynthesis in a non-rotating 15$M_\odot$ star with solar metallicity that explodes by a neutrino-heating supernova (SN) mechanism aided by both standing accretion shock instability (SASI) and convection. To…

高能天体物理现象 · 物理学 2015-05-28 Shin-ichiro Fujimoto , Kei Kotake , Masa-aki Hashimoto , Masaomi Ono , Naofumi Ohnishi