Disruption of forced current sheets in astrophysical plasmas.
Abstract
Ion tearing mode instability of the forced current sheets is studied. The trapped electrons have a strong stabilizing effect on the excitation of the instability. The presence of background turbulence can effectively lead to the untrapping of the electron orbits and, thus, facilitate excitation of ion tearing instability. Respective scenarios for magnetospheric substorms, solar flares and coronal transients are discussed.
- Publication:
-
Bulletin of the Astronomical Society of India
- Pub Date:
- September 1993
- Bibcode:
- 1993BASI...21..537L
- Keywords:
-
- Astrophysics;
- Current Sheets;
- Plasmas (Physics);
- Stability;
- Tearing Modes (Plasmas);
- Geomagnetic Tail;
- Magnetic Storms;
- Solar Corona;
- Solar Flares;
- Astrophysics