160 citations · 359 across the 5 of their papers we have counts for
5 papers
Perspectives of Core-Collapse Supernovae beyond SN 1987A
H. -Th. Janka, W. Keil
The observation of neutrinos from Supernova 1987A has confirmed the theoretical conjecture that these particles play a crucial role during the collapse of the core of a massive sta…
A Fresh Look at Axions and SN 1987A
Wolfgang Keil, Hans-Thomas Janka, David N. Schramm +3
We re-examine the very stringent limits on the axion mass based on the strength and duration of the neutrino signal from SN 1987A, in the light of new measurements of the axial-vec…
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…
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'…
Reduced Neutrino Opacities and the SN 1987A Signal
Wolfgang Keil, H. -Thomas Janka, Georg Raffelt
Axial-vector interactions of neutrinos and axions with a medium are based on structure functions which cannot be calculated in simple perturbative terms for nuclear densities. We u…