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One of the main challenges in modeling massive stars to the onset of core collapse is the computational bottleneck of nucleosynthesis during advanced burning stages. The number of isotopes formed requires solving a large set of…

The masses and the evolutionary states of the progenitors of core-collapse supernovae are not well constrained by direct observations. Stellar evolution theory generally predicts that massive stars with initial masses less than about…

天体物理学 · 物理学 2009-11-07 S. J. Smartt

We present a first study of the progenitor star dependence of the three-dimensional (3D) neutrino mechanism of core-collapse supernovae. We employ full 3D general-relativistic multi-group neutrino radiation-hydrodynamics and simulate the…

高能天体物理现象 · 物理学 2019-02-13 C. D. Ott , L. F. Roberts , A. da Silva Schneider , J. M. Fedrow , R. Haas , E. Schnetter

We present the results from a series of two-dimensional core-collapse simulations using a rotating progenitor star. We find that the convection in these simulations is less vigorous because a) rotation weakens the core bounce which seeds…

天体物理学 · 物理学 2009-10-31 C. L. Fryer , A. Heger

The final collapse of the cores of massive stars can lead to a wide variety of outcomes in terms of electromagnetic and kinetic energies, nucleosynthesis, and remnants. The connection of this wide spectrum of explosion and remnant types to…

高能天体物理现象 · 物理学 2022-04-05 M. Obergaulinger , M. Á. Aloy

Core-collapse explosions of massive stars leave behind neutron stars, with a known diversity that includes the "Central Compact Objects" (CCOs). Typified by the neutron star discovered near the centre of the Cas A supernova remnant (SNR),…

高能天体物理现象 · 物理学 2023-08-29 Chelsea Braun , Samar Safi-Harb , Chris Fryer , Ping Zhou

Stars with initial mass above roughly 8 solar masses will evolve to form a core made of iron group elements at which point no further exothermic nuclear reactions between charged nuclei may prevent the core collapse. Electron captures,…

The progenitors of core-collapse supernovae are stars with an initial mass greater than about 8M(sun). Understanding the evolution of these stars is necessary to comprehend the evolution and differences between supernovae. We have…

天体物理学 · 物理学 2007-05-23 John J. Eldridge

The progenitors of hydrogen-poor core-collapse supernovae (SNe) of types Ib, Ic and IIb are believed to have shed their outer hydrogen envelopes either by extremely strong stellar winds, characteristic of classical Wolf-Rayet stars, or by…

高能天体物理现象 · 物理学 2016-02-03 T. Heikkilä , S. Tsygankov , S. Mattila , J. J. Eldridge , M. Fraser , J. Poutanen

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

We investigate a method to construct parametrized progenitor models for core-collapse supernova simulations. Different from all modern core-collapse supernova studies, which rely on progenitor models from stellar evolution calculations, we…

高能天体物理现象 · 物理学 2016-07-27 Yudai Suwa , Ewald Müller

I summarize what we have learned about the nature of stars that ultimately explode as core-collapse supernovae from the examination of images taken prior to the explosion. By registering pre-supernova and post-supernova images, usually…

太阳与恒星天体物理 · 物理学 2009-08-14 Douglas C. Leonard

Calibrating with detailed 2D core-collapse supernova simulations, we derive a simple core-collapse supernova explosion condition based solely upon the terminal density profiles of state-of-the-art stellar evolution calculations of the…

太阳与恒星天体物理 · 物理学 2022-10-05 Tianshu Wang , David Vartanyan , Adam Burrows , Matthew S. B. Coleman

In this paper, we present the results of 3-dimensional collapse simulations of rotating stars for a range of stellar progenitors. We find that for the fastest spinning stars, rotation does indeed modify the convection above the…

天体物理学 · 物理学 2009-11-10 C. L. Fryer , M. S. Warren

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

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

The status of core collapse supernoova progenitor models is reviewed with a focus on some of the current uncertainties arising from the difficulties of modeling important macrophysics and microphysics. In particular, I look at issues…

天体物理学 · 物理学 2017-08-23 Stephen W. Bruenn

Knowledge of the progenitors of core-collapse supernovae is a fundamental component in understanding the explosions. The recent progress in finding such stars is reviewed. The minimum initial mass that can produce a supernova has converged…

太阳与恒星天体物理 · 物理学 2015-05-13 Stephen J. Smartt

The study of core-collapse supernova remnants (SNRs) presents a fascinating puzzle, with intricate morphologies and a non-uniform distribution of stellar debris. Particularly, young remnants (aged less than 5000 years) hold immense value as…

高能天体物理现象 · 物理学 2023-11-10 Salvatore Orlando

We review the nuclear physics input necessary for the study of the collapse of massive stars as precursor to supernova explosions. Recent theoretical advances for the calculation of the relevant weak-interaction processes and their…

天体物理学 · 物理学 2009-11-10 G. Martinez-Pinedo , M. Liebendoerfer , D. Frekers
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