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相关论文: Core-collapse supernova simulations: Variations of…

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Core collapse supernovae are unique laboratories to study many aspects of neutrino physics. The vicinity of the proto-neutron star in a core-collapse supernova is characterized by large matter and neutrino densities. A salient feature of…

太阳与恒星天体物理 · 物理学 2015-06-11 A. B. Balantekin

We have made core-collapse supernova simulations that allow oscillations between electron neutrinos (or their anti particles) with right-handed sterile neutrinos. We have considered a range of mixing angles and sterile neutrino masses…

高能天体物理现象 · 物理学 2014-12-05 MacKenzie L. Warren , Matthew Meixner , Grant Mathews , Jun Hidaka , Toshitaka Kajino

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

We study the explosion mechanism of collapse-driven supernovae by numerical simulations with a new nuclear EOS based on unstable nuclei. We report new results of simulations of general relativistic hydrodynamics together with the Boltzmann…

天体物理学 · 物理学 2009-11-13 K. Sumiyoshi , S. Yamada , H. Suzuki , H. Shen , H. Toki

We explore with self-consistent 2D F{\sc{ornax}} simulations the dependence of the outcome of collapse on many-body corrections to neutrino-nucleon cross sections, the nucleon-nucleon bremsstrahlung rate, electron capture on heavy nuclei,…

太阳与恒星天体物理 · 物理学 2018-01-30 Adam Burrows , David Vartanyan , Joshua C. Dolence , M. Aaron Skinner , David Radice

While an understanding of supernova explosions will require sophisticated large-scale simulations, it is nevertheless possible to outline the most basic features of the neutrino emission resulting from stellar core collapse with a…

天体物理学 · 物理学 2007-05-23 Christian Y. Cardall

In this brief review we explore the role of neutrino-nucleus interactions in core-collapse supernovae and discuss open questions. In addition implications of neutrino mass and mixings in such environments are summarized.

天体物理学 · 物理学 2008-11-26 A. B. Balantekin , G. M. Fuller

The quest for the supernova explosion mechanism has been one of the outstanding challenges in computational astrophysics for several decades. Simulations have now progressed to a stage at which the solution appears close and neutrino and…

太阳与恒星天体物理 · 物理学 2011-12-09 Bernhard Mueller , Hans-Thomas Janka , Andreas Marek , Florian Hanke , Annop Wongwathanarat , Ewald Mueller

There are many interesting topics at the intersection of physics and astrophysics we call Supernova Theory. A small subset of them include the origin of pulsar kicks, gravitational radiation signatures of core bounce, and the possible roles…

天体物理学 · 物理学 2007-05-23 Adam Burrows , Christian D. Ott , Casey Meakin

Core-collapse supernovae are among the most fascinating phenomena in astrophysics and provide a formidable challenge for theoretical investigation. They mark the spectacular end of the lives of massive stars and, in an explosive eruption,…

太阳与恒星天体物理 · 物理学 2012-11-08 H. -Thomas Janka , Florian Hanke , Lorenz Huedepohl , Andreas Marek , Bernhard Mueller , Martin Obergaulinger

Core-collapse supernovae are powerful neutrino sources. The observation of a future (extra-)galactic supernova explosion or of the relic supernova neutrinos might provide important information on the supernova dynamics, on the supernova…

天体物理学 · 物理学 2009-11-13 J. Gava , C. Volpe

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…

高能天体物理现象 · 物理学 2026-05-27 B. Mueller , B. Sykes

We investigate to what extent the temperature dependence of the nuclear symmetry energy can affect the neutronization of the stellar core prior to neutrino trapping during gravitational collapse. To this end, we implement a one-zone…

天体物理学 · 物理学 2011-11-24 A. F. Fantina , P. Donati , P. M. Pizzochero

We present the first 3-dimensional simulations following the evolution of supernova shocks from their inception in the stellar core through the development of a supernova remnant into the Sedov phase. Our set of simulations use two…

太阳与恒星天体物理 · 物理学 2013-05-20 Carola I. Ellinger , Gabriel Rockefeller , Christopher L. Fryer , Patrick A. Young , Sangwook Park

In core-collapse supernovae, neutrinos and antineutrinos are initially subject to significant self-interactions induced by weak neutral currents, which may induce strong-coupling effects on the flavor evolution (collective transitions). The…

高能物理 - 唯象学 · 物理学 2008-09-19 G. L. Fogli , E. Lisi , A. Marrone , A. Mirizzi

We perform smoothed-particle hydrodynamical simulations of the explosion of a helium star in a close binary system, and study the effects of the explosion on the companion star as well as the effect of the presence of the companion on the…

太阳与恒星天体物理 · 物理学 2015-10-12 Alex Rimoldi , Simon Portegies Zwart , Elena Maria Rossi

Core-collapse supernova models depend on the details of the nuclear and weak interaction physics inputs just as they depend on the details of the macroscopic physics (transport, hydrodynamics, etc.), numerical methods, and progenitors. We…

太阳与恒星天体物理 · 物理学 2011-01-04 Eric J. Lentz , W. Raphael Hix , Mark L. Baird , O. E. Bronson Messer , Anthony Mezzacappa

The overwhelming evidence that the core collapse supernova mechanism is inherently multidimensional, the complexity of the physical processes involved, and the increasing evidence from simulations that the explosion is marginal presents…

天体物理学 · 物理学 2009-11-13 S. W. Bruenn , C. J. Dirk , A. Mezzacappa , J. C. Hayes , J. M. Blondin , W. R. Hix , O. E. B. Messer

Core collapse supernova modeling has advanced considerably since the first numerical simulations were performed sixty years ago. In particular, the last decade has brought us sophisticated three-dimensional models with significant…

高能天体物理现象 · 物理学 2026-04-29 Anthony Mezzacappa

We report a current status of our radiation-magnetohydrodynamic code for the study of core-collapse supernovae. In this contribution, we discuss the accuracy of our newly developed numerical code by presenting the test problem in a static…

天体物理学 · 物理学 2009-11-13 Kei Kotake , Naofumi Ohnishi , Shoichi Yamada , Katsuhiko Sato