Radio burst characteristics of solar proton flares
Abstract
Intense centimetric bursts and metric type II bursts associated with solar flares at magnetically well-connected longitudes but not resulting in detected prompt proton events are compared with the radio bursts of proton flares. It is found that the appearance of a type II burst, which is indicative of a coronal shock, is not a sufficient condition for the occurrence of an interplanetary proton event and that interplanetary energetic protons are not significantly produced in most type II burst shocks. The roles of type II, microwave, decimetric, and metric bursts in proton flares are examined. It is concluded that the occurrence of a decimetric or metric stationary type IV burst appears to be a requirement for most proton flares and that energetic electrons produced in postflare loop systems are the sources of the type IV bursts associated with proton flares.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- October 1982
- DOI:
- 10.1086/160381
- Bibcode:
- 1982ApJ...261..710K
- Keywords:
-
- Particle Acceleration;
- Solar Flares;
- Solar Protons;
- Solar Radio Bursts;
- Centimeter Waves;
- Decimeter Waves;
- Type 2 Bursts;
- Type 4 Bursts;
- Solar Physics