Space Weather Effects: Decay Phases in Gradual and Impulsive Solar Energetic Particle Events
Abstract
This report results from a contract tasking Skobeltyn Nuclear Physics Institute of Moscow State University as follows: This is an investigation of the decay phases of gradual and impulsive solar energetic particle (SEP) events associated and non-associated to coronal mass ejections (CMEs) and CME-driven shocks. The contractor will use the multispacecraft (mis) data obtained in the 1970s and 1980s to develop understanding of processes of particle transport and losses and the role of travelling shocks for formation of particle intensity-time profiles at late phase of event at different radial distances and heliologitudes of the observer. This will be done based on a database of energetic protons. aiphas and electrons, as well as solar wind and interplanetary magnetic field, from the Prognoz, the Venera, the Vega, the Phobos 2, the Helios and IMP 7,8 spacecraft. The correlated observations will be used to test modem models of SEP event formation. Practical application of the results to be obtained is related to the problems of space weather, as well as radiaUon hazards durtng manned space missions and radiation affects on mateflals and instruments.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 2003
- Accession Number
- ADA419755
Entities
People
- Vladislav G. Stolpovskii