Academy of Finland
Funding decision
Name Valtonen, Eino Sakari
Organisation TY
Project title
Finnish Consortium for Solar Research with Alpha Magnetic Spectrometer on International Space Station
Decision No. 258963
Decision date 08.06.2012
Funding period 01.09.2012 - 31.08.2016
Funding 473 516
WebFOCUS Report
Project description
We have investigated the origin of high-energy solar particles. The research was carried out by using data sets form space-borne and ground-based measurements. Space-borne particle observations were combined with observations of the world-wide neutron monitor network and with measurements of solar electromagnetic radiation at various wavelengths. Analysis of the high-energy particle events and interpretation of the measurements was done by modelling of the particle transport from a near-Sun source through the solar wind to a detector onboard the spacecraft or further through the Earth's magnetosphere and atmosphere to a detector on ground. We have revealed the high-energy particle sources in several events and developed models of particle acceleration by shocks driven by coronal mass ejections and by the shock-amplified turbulence in coronal loops and in the realistically structured environment near the Sun, which help us to understand the origins of the high-energy particle events.