Flare loops heating by the 0.1?1.0 MeV proton beams
| Autor: | Yurii M. Voitenko |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
Physics
Proton Solar flare Astronomy and Astrophysics Coronal loop Kinetic energy Instability law.invention Nuclear physics Space and Planetary Science law Electric field Physics::Space Physics Physics::Accelerator Physics Astrophysics::Solar and Stellar Astrophysics Atomic physics Beam (structure) Flare |
| Zdroj: | Solar Physics. 168:219-222 |
| ISSN: | 1573-093X 0038-0938 |
| DOI: | 10.1007/bf00145839 |
| Popis: | The fast heating of coronal loops at the very beginning of solar flares is discussed as a first observable signature of downstreaming 0.1–1 MeV proton beams. We place emphasis on the produced by proton beams large-scale upward electric field, supporting beam-driven instability of the kinetic Alfven waves (KAW). The considerable part of a beam kinetic energy may be converted into heat via intermediate KAW with heated region initially spreading from the top downward to footpoints of the loop-like coronal structures with velocity of about a few thousands km/s. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink