Physics
Scientific paper
Feb 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...268..360j&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 268, no. 1, p. 360-368.
Physics
45
Gravitational Collapse, Stellar Cores, Stellar Physics, Supernovae, Finite Difference Theory, Hydrodynamic Equations, Shock Wave Propagation, Stellar Models, Viscosity
Scientific paper
We apply two different methods for the numerical treatment of the hydrodynamical equations to the problem of stellar core collapse in one dimension, starting the simulations with the same initial model and using the same equation of state. We follow the collapse with a standard Lagrangian finite difference scheme with artificial viscosity and compare it with a second order Godunov-type scheme (PPM), which works in Eulerian coordinates. Different from Marti et al. (1990) our results demonstrate that with a careful use of an up-to-date tensor form for the artificial viscosity the results of both codes are in excellent agreement. Therefore we conclude that the failure of the prompt shock mechanism to explode type-II supernovae is not due to an inadequate numerical description of the hydrodynamics, but must have other, possibly physical, reasons.
Janka H.-Th.
Moenchmeyer R.
Zwerger Th.
No associations
LandOfFree
Does artificial viscosity destroy prompt type-II supernova explosions? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Does artificial viscosity destroy prompt type-II supernova explosions?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Does artificial viscosity destroy prompt type-II supernova explosions? will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1271735