Recent Advances from Theory and 3-D Numerical Modeling in Understanding the Origin and Evolution of CMEs and Related SEP

Details Recent Advances from Theory and 3-D Numerical Modeling in Understanding the Origin and Evolution of CMEs and Related SEP Recent Advances from Theory and 3-D Numerical Modeling in Understanding the Origin and Evolution of CMEs and Related SEP

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008espm...12..5.1r&link_type=abstract

"12th European Solar Physics Meeting, Freiburg, Germany, held September, 8-12, 2008. Online at http://espm.kis.uni-freiburg.de/,

Physics

Scientific paper

To date, it is well established that Coronal Mass Ejections (CMEs) play a leading role in the Sun-Earth connection, because of their large-scale, energetics and direct impact on the space environment near the Earth. As CMEs evolve in the solar corona and interplanetary space they drive shock waves, which act as powerful accelerators of charged particles in the heliosphere by means of Fermi acceleration processes. Some of these so-called Solar Energetic Particles (SEPs) can strike our planet, and in doing so they can disrupt satellites and knock out power systems on the ground, among other effects. The SEPs, along with the intensive X-ray radiation from solar flares, also endanger human life in outer space. That is why it is important for solar scientists to understand and predict the ever changing environmental conditions in outer space due to solar eruptive events -- the space weather. To enable the development of accurate space weather forecast, in the past 35 years solar scientists have been challenged to provide an improved understanding of the physical causes of CMEs and related phenomena, such as the production of SEPs. This talk summarizes the most recent advances from theory and 3-D numerical modeling in understanding the origin and evolution of CMEs and related SEP events.

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