Relation of decline characteristics of 2–4.6MeV protons in SEP events to solar wind parameters
Relation of decline characteristics of 2–4.6MeV protons in SEP events to solar wind parameters
- Neue Suche nach: Daibog, E.I.
- Neue Suche nach: Kahler, S.
- Neue Suche nach: Kecskeméty, K.
- Neue Suche nach: Logachev, Yu.I.
- Neue Suche nach: Daibog, E.I.
- Neue Suche nach: Kahler, S.
- Neue Suche nach: Kecskeméty, K.
- Neue Suche nach: Logachev, Yu.I.
AbstractThe shape of the particle flux decline in solar energetic particle (SEP) events is of particular importance in understanding the propagation of energetic particles in the interplanetary medium. Power-law time profiles indicate the dominance of diffusive propagation, whereas exponential-law decline emphasizes convection transport and adiabatic deceleration. Values obtained theoretically for the decay time in the latter case are reasonably close to the fitted slopes in nearly half of all events when the solar wind speed stays nearly constant. Dependencies of characteristic decay time τ and spectral index γ on environmental plasma parameters are considered. Parts of exponential-law declines when solar wind speed: (a) decreases with time, (b) is constant, and (c) increases with time through the interval are analyzed separately. Both average values and dispersions of size distributions of τ for these three groups markedly differ in accordance with theoretical expectations.
Dokumentinformationen
Relation of decline characteristics of 2–4.6MeV protons in SEP events to solar wind parameters
Advances in Space Research ; 35 , 10 ; 1882-1886
2005-01-04
5 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Ähnliche Titel
Relation of decline characteristics of 2#82114.6MeV protons in SEP events to solar wind parameters
| Online Contents | 2005
Propagation of upstream protons in the near-earth solar wind
| Elsevier | 1981
Reflection of solar wind protons from magnetic anomalies of the moon
| Springer Verlag | 2015