On the origin of solar spicules
Abstract
The nonlinear evolution of vertical motions on intense solar magnetic flux tubes is considered. It is shown that a quasi-impulsive source in the photosphere can excite a train of upward-propagating rebound shocks in the chromosphere. The rebound shock train is the nonlinear development of oscillations of the atmosphere at its natural frequency. The rebound shocks impinge on the transition region and thrust the underlying chromosphere upward. It is found that the rebound shock train leads naturally to structures which can be identified with the solar spicules.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- June 1982
- DOI:
- 10.1086/159993
- Bibcode:
- 1982ApJ...257..345H
- Keywords:
-
- Chromosphere;
- Magnetic Flux;
- Shock Wave Propagation;
- Solar Magnetic Field;
- Spicules;
- Gravity Waves;
- Photosphere;
- Shock Heating;
- Solar Atmosphere;
- Sound Waves;
- Stellar Oscillations;
- Solar Physics