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Nucleon Spin Fluctuations and the Supernova Emission of Neutrinos and Axions
H. -T. Janka, W. Keil, G. Raffelt +1
In the hot and dense medium of a supernova (SN) core, the nucleon spins fluctuate so fast that the axial-vector neutrino opacity and the axion emissivity are expected to be signifi…
Neutrinos from SN 1987A: Can they tell even more ?
H. -Thomas Janka
The neutrino signal from SN~1987A provides an excellent opportunity to constrain physical theories for matter at extreme conditions and properties of particles that are produced in…
WHEN DO SUPERNOVA NEUTRINOS OF DIFFERENT FLAVORS HAVE SIMILAR LUMINOSITIES BUT DIFFERENT SPECTRA ?
H. -Thomas Janka
Muon and tau neutrinos () interact with protoneutron star matter only via neutral currents and exchange energy with the stellar gas predominantly by neutrino-electron scatteri…
COALESCING NEUTRON STARS AS GAMMA RAY BURSTERS ?
M. Ruffert, H. -Th. Janka, W. Keil +1
We investigate the dynamics and evolution of coalescing neutron stars. The three-dimensional Newtonian equations of hydrodynamics are integrated by the `Piecewise Parabolic Method'…
The First Second of a Type-II Supernova: Convection, Accretion, and Shock Propagation
H. -Thomas Janka, Ewald Mueller
One- and two-dimensional hydrodynamical simulations of neutrino-driven supernova explosions are discussed. The simulations cover the phase between the stagnation of the prompt shoc…