420 citations · 4k across the 52 of their papers we have counts for
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Two-Dimensional Hydrodynamic Core-Collapse Supernova Simulations with Spectral Neutrino Transport II. Models for Different Progenitor Stars
R. Buras, H. -Th. Janka, M. Rampp +1
1D and 2D supernova simulations for stars between 11 and 25 solar masses are presented, making use of the Prometheus/Vertex neutrino-hydrodynamics code, which employs a full spectr…
Two-dimensional hydrodynamic core-collapse supernova simulations with spectral neutrino transport. I. Numerical method and results for a 15 M_sun star
R. Buras, M. Rampp, H. -Th. Janka +1
Supernova models with a full spectral treatment of the neutrino transport are presented, employing the Prometheus/Vertex neutrino-hydrodynamics code with a ``ray-by-ray plus'' appr…
Exploiting the neutronization burst of a galactic supernova
M. Kachelriess, R. Tomas, R. Buras +3
One of the robust features found in simulations of core-collapse supernovae (SNe) is the prompt neutronization burst, i.e. the first milliseconds after bounce when the SN…
Neutrino-Driven Supernovae: an Accretion Instability in a Nuclear Physics Controlled Environment
H. -T. Janka, R. Buras, F. S. Kitaura Joyanes +3
New simulations demonstrate that low-mode, nonradial hydrodynamic instabilities of the accretion shock help starting hot-bubble convection in supernovae and thus support explosions…
Core-Collapse Supernovae: Modeling between Pragmatism and Perfectionism
H. -Th. Janka, R. Buras, F. S. Kitaura Joyanes +2
We briefly summarize recent efforts in Garching for modeling stellar core collapse and post-bounce evolution in one and two dimensions. The transport of neutrinos of all flavors is…
Core-Collapse Supernovae at the Threshold
H. -Th. Janka, R. Buras, K. Kifonidis +2
Recent progress in modeling core-collapse supernovae is summarized and set in perspective. Two-dimensional simulations with state-of-the-art treatment of neutrino transport still f…
Supernova Simulations with Boltzmann Neutrino Transport: A Comparison of Methods
M. Liebendoerfer, M. Rampp, H. -Th. Janka +1
Accurate neutrino transport has been built into spherically symmetric simulations of stellar core collapse and postbounce evolution. The results of such simulations agree that sphe…
Towards Gravitational Wave Signals from Realistic Core Collapse Supernova Models
Ewald Mueller, Markus Rampp, Robert Buras +2
We have computed the gravitational wave signal from supernova core collapse using the presently most realistic input physics available. We start from state-of-the-art progenitor mo…
Supernova neutrinos: Flavor-dependent fluxes and spectra
G. G. Raffelt, M. Th. Keil, R. Buras +2
Transporting nu_mu and nu_tau in a supernova (SN) core involves several processes that have been neglected in traditional simulations. Based on a Monte Carlo study we find that the…
Improved Models of Stellar Core Collapse and Still no Explosions: What is Missing?
R. Buras, M. Rampp, H. -Th. Janka +1
Two-dimensional hydrodynamic simulations of stellar core-collapse with and without rotation are presented which for the first time were performed by solving the Boltzmann equation…
Electron capture rates on nuclei and implications for stellar core collapse
K. Langanke, G. Martinez-Pinedo, J. M. Sampaio +7
Supernova simulations to date have assumed that during core collapse electron captures occur dominantly on free protons, while captures on heavy nuclei are Pauli-blocked and are ig…
Explosion Mechanisms of Massive Stars
H. -Th. Janka, R. Buras, K. Kifonidis +2
One of the central problems in supernova theory is the question how massive stars explode. Understanding the physical processes that drive the explosion is crucial for linking the…
The Mechanism of Core-Collapse Supernovae and the Ejection of Heavy Elements
H. -Th. Janka, R. Buras, M. Rampp
We present here the first results of two-dimensional hydrodynamical simulations of the neutrino-heating phase in the collapsed core of a 15 solar mass star, where the neutrino tran…
Electron Neutrino Pair Annihilation: A New Source for Muon and Tau Neutrinos in Supernovae
Robert Buras, Hans-Thomas Janka, Mathias Th. Keil +2
We show that in a supernova core the annihilation process nu_e nu_e-bar -> nu_{mu,tau} nu_{mu,tau}-bar is always more important than the traditional reaction e^+ e^- -> nu_{mu,tau}…
Core-collapse supernova simulations: Variations of the input physics
M. Rampp, R. Buras, H. -Th. Janka +1
Spherically symmetric simulations of stellar core collapse and post-bounce evolution are used to test the sensitivity of the supernova dynamics to different variations of the input…
Radiation hydrodynamics with neutrinos: Variable Eddington factor method for core-collapse supernova simulations
Markus Rampp, H. -Thomas Janka
Neutrino transport and neutrino interactions in dense matter play a crucial role in stellar core collapse, supernova explosions and neutron star formation. Here we present a detail…
Supernova Explosions and Neutron Star Formation
H. -Th. Janka, K. Kifonidis, M. Rampp
The current picture of the collapse and explosion of massive stars and the formation of neutron stars is reviewed. According to the favored scenario, however by no means proven and…
Spherically Symmetric Simulation with Boltzmann Neutrino Transport of Core Collapse and Post-Bounce Evolution of a 15 Solar Mass Star
M. Rampp, H. -Th. Janka
We present a spherically symmetric, Newtonian core-collapse simulation of a 15 solar mass star with a 1.28 solar mass iron core. The time-, energy-, and angle-dependent transport o…
Simulations of non-axisymmetric rotational core collapse
M. Rampp, E. Mueller, M. Ruffert
We report on the first three-dimensional hydrodynamic simulations of secular and dynamical non-axisymmetric instabilities in collapsing, rapidly rotating stellar cores which extend…
Coalescing neutron stars -- gravitational waves from polytropic models
M. Ruffert, M. Rampp, H. -Th. Janka
The dynamics, time evolution of the mass distribution, and gravitational wave signature of coalescing neutron stars described by polytropes are compared with three simulations publ…