Published August 1990
| Version v1
Journal article
Acceleration of energetic particles by shock waves from large solar flares
Description
Time-intensity profiles for solar proton events are analyzed with respect to the acceleration of energetic particles from the ambient solar wind by an interplanetary shock. The time-intensity profiles are derived from the Helio 1 particle data base for 1974 to 1984. It is found that many of the large proton events display a prolonged plateau. The Fe/O abundances in the large proton events are studied. It is observed that initially the Fe/O ratio is high (about 1.0), but after proton intensities increase to about 100 protons/sq cm sr sec MeV the Fe/O ratio decreases to a value near 0.1. 21 refs
Additional details
Publishing Information
- Journal Title
- Astrophysical Journal
- Journal Volume
- 358
- Series
- Astrophys. J.
- Journal Page Range
- L63-L67
- ISSN
- 0004-637X
- CODEN
- ASJOA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 22006537
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- ACCELERATION; ELEMENT ABUNDANCE; INTERACTIONS; INTERPLANETARY SPACE; MASS DISTRIBUTION; SHOCK WAVES; SOLAR FLARES; SOLAR PROTONS; SOLAR WIND
- Descriptors DEC
- BARYONS; CATIONS; CHARGED PARTICLES; DISTRIBUTION; ELEMENTARY PARTICLES; FERMIONS; HADRONS; HYDROGEN IONS; HYDROGEN IONS 1 PLUS; IONS; NUCLEONS; PROTONS; QUANTITY RATIO; RADIATIONS; SOLAR ACTIVITY; SOLAR PARTICLES; SOLAR RADIATION; SPACE; SPATIAL DISTRIBUTION; STELLAR ACTIVITY; STELLAR FLARES; STELLAR RADIATION; STELLAR WINDS