A Mechanism for the Exploding Granule Phenomenon
Abstract
I suggest that the exploding granule phenomenon is a consequence of the observed internal granular motions and the conservation of angular momentum. When a granule rising from the convection zone penetrates into the overlying stable region it is stretched out horizontally. Conservation of angular momentum in the internal motions changes its form into a vortex ring. A time sequence of photographs showing an exploding solar granule is described. The proposed mechanism is illustrated by a laboratory simulation and a numerical calculation.
- Publication:
-
Solar Physics
- Pub Date:
- October 1972
- DOI:
- 10.1007/BF00165270
- Bibcode:
- 1972SoPh...26..290M
- Keywords:
-
- Vortex;
- Convection;
- Angular Momentum;
- Numerical Calculation;
- Stable Region