Statistics – Computation
Scientific paper
Sep 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aas...181.6705m&link_type=abstract
American Astronomical Society, 181st AAS Meeting, #67.05; Bulletin of the American Astronomical Society, Vol. 24, p.1227
Statistics
Computation
1
Scientific paper
Supernovae explode in an interstellar medium threaded by a dynamically important magnetic field. As supernova remnants develop, this field limits the compression of the radiatively cooled shell, and restricts the volume occupied by the hot interior. It also drives transverse mass flows in the shell, and may drive interchange instability. We have modeled magnetized blast waves in two and three dimensions using ZEUS-2D and ZEUS-3D. These are second-order, Eulerian, astrophysical MHD codes that use Van Leer advection and consistent transport of the fields. We include the effects of radiative cooling assuming equilibrium ionization. Tests include a comparison to a two-dimensional semi-analytic model. To find the complete ``four-volume'' of the SNR (the time history of the SNR volume) we compute our models long enough to follow the eventual collapse of the SNR under the thermal and magnetic pressure of the ambient gas. We compare the collapse of unmagnetized and magnetized SNRs to understand the effect of the field on the four-volume. We will also present preliminary models of superbubbles in stratified magnetized galactic disks, including the effects of radiative cooling. These show whether superbubbles can excite Parker instabilities or confine supernova energy within the disk, and so prevent it from venting to the halo through chimneys. These computations were performed at the National Center for Supercomputing Applications.
Mac Low Mordecai-Mar
Norman Michael L.
No associations
LandOfFree
Magnetized Interstellar Blast Waves 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 Magnetized Interstellar Blast Waves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetized Interstellar Blast Waves will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1764051