Magnetic fields in supernovae and supernova shells.
Abstract
There are indications that supernova explosions are driven by magnetic springs, i.e. that the spin energy of the collapsing core is transferred to the envelope via magnetic stresses which subsequently convert to relativistic e±-pair plasma. The expanding pair plasma decomposes the star's shell into magnetised thermal filaments. Supernova shells are 3-dim networks of such filaments, of high mass density and low filling factor, whose explosion velocity decreases exponentially with time. Their surrounding space is filled with relativistic pair plasma and/or ambient matter of interstellar composition. The various (polarized) morphologies of SN shells can be understood in terms of the relative motion of these three components.
- Publication:
-
Interstellar Magnetic Fields: Observation and Theory
- Pub Date:
- 1987
- Bibcode:
- 1987imfo.work..185K
- Keywords:
-
- Interstellar Matter;
- Radio Astronomy;
- Stellar Envelopes;
- Stellar Flares;
- Stellar Magnetic Fields;
- Supernovae;
- Crab Nebula;
- Electron-Positron Pairs;
- Relativistic Electron Beams;
- Astrophysics;
- Magnetic Fields:Supernova Remnants;
- Magnetic Fields:Supernovae;
- Supernova Remnants:Evolution;
- Supernova Remnants:Magnetic Fields;
- Supernovae:Magnetic Fields