Neutrino radiation hydrodynamics in hot and dense nuclear matter and the role of microphysics in simulations of massive stars [PDF]
, 2010 The main results of my doctoral studies were obtained from core collapse simulations of massive stars using a numerical model based on radiation hydrodynamics and three-flavour Boltzmann neutrino transport in spherical symmetry.
Fischer, Tobias
core +1 more source
THE GENERAL RELATIVISTIC INSTABILITY SUPERNOVA OF A SUPERMASSIVE POPULATION III STAR [PDF]
The Astrophysical Journal, 2014 The formation of supermassive Population III stars with masses $\gtrsim$ 10,000 Msun in primeval galaxies in strong UV backgrounds at $z \sim$ 15 may be the most viable pathway to the formation of supermassive black holes by $z \sim$ 7. Most of these stars are expected to live for short times and then directly collapse to black holes, with little or no
Ke-Jung Chen +5 more
openaire +2 more sources
Magnetic Field Generation by Charge Exchange in a Supernova Remnant in the Early Universe [PDF]
The Astrophysical Journal, 2021 Abstract We present new-generation mechanisms of magnetic fields in supernova remnant shocks propagating to partially ionized plasmas in the early universe. Upstream plasmas are dissipated at the collisionless shock, but hydrogen atoms are not dissipated because they do not interact with electromagnetic fields.
Shuhei Kashiwamura, Yutaka Ohira
openaire +2 more sources
Latest supernova data in the framework of the generalized Chaplygin gas model [PDF]
Monthly Notices of the Royal Astronomical Society, 2004 We use the most recent Type-Ia Supernova data in order to study the dark energy - dark matter unification approach in the context of the Generalized Chaplygin Gas (GCG) model. Rather surprisingly, we find that data allow models with $α> 1$. We have studied how the GCG adjusts flat and non-flat models, and our results show that GCG is consistent with
Bertolami, O. +3 more
openaire +2 more sources
Data for Figure 1 of Taubenberger 2017, "The Extremes of Thermonuclear Supernovae"
, 2021 Data needed to recreate Figure 1 of Taubenberger S., "The Extremes of Thermonuclear Supernovae", in A. W. Alsabti, P. Murdin, eds., “Handbook of Supernovae”, Springer, ISBN: 978-3-319-20794-0 (2017).
Taubenberger Stefan
core +1 more source
FULLY GENERAL RELATIVISTIC SIMULATIONS OF CORE-COLLAPSE SUPERNOVAE WITH AN APPROXIMATE NEUTRINO TRANSPORT [PDF]
, 2012 We present results from the first generation of multi-dimensional hydrodynamic core-collapse simulations in full general relativity (GR) that include an approximate treatment of neutrino transport.
T. Kuroda, K. Kotake, T. Takiwaki
semanticscholar +1 more source
Supernovae. Part I: the events [PDF]
, 1982 Since the heroic era of Baade and Zwicky, our understanding of supernovae has advanced in hops and skips rather than steadily. The most recent jump has been into fairly general agreement that observations of Type I's can be interpreted as the ...
Trimble, Virginia
core +1 more source
Generalized Kompaneets formalism for inelastic neutrino-nucleon scattering in supernova simulations [PDF]
Physical Review D, 2020 Based on the Kompaneets approximation, we develop a robust methodology to calculate spectral redistribution via inelastic neutrino-nucleon scattering in the context of core-collapse supernova simulations. The resulting equations conserve lepton number to machine precision and scale linearly, not quadratically, with number of energy groups.
Tianshu Wang, Adam Burrows
openaire +2 more sources
r-process Nucleosynthesis from Three-dimensional Magnetorotational Core-collapse Supernovae [PDF]
Astrophysical Journal, 2017 We investigate r-process nucleosynthesis in 3D general-relativistic magnetohydrodynamic simulations of rapidly rotating strongly magnetized core collapse.
P. Mösta +6 more
semanticscholar +1 more source
A Novel multidimensional Boltzmann neutrino transport scheme for core-collapse supernovae. [PDF]
Monthly notices of the Royal Astronomical Society, 2020 We introduce a new discrete-ordinate scheme for solving the general relativistic (GR) Boltzmann transport equation in the context of core-collapse supernovae (CCSNe).
Conrad Chan, B. Müller
semanticscholar +1 more source