Place: 4274 Chamberlin (Refreshments will be served)
Speaker: Alex Lazarian, UW Department of Astronomy
Abstract: The Sun is a magnetically active star. Solar activity results in inducing the solar wind as well as generating the energetic particles. The solar wind affects the size of the heliosphere around the solar system and this induces modulation of the galactic cosmic rays arriving to the Earth. Energetic particles from the Sun interact with the Earth's magnetic field and cause electromagnetic storms. I shall discuss how the Sun affects the Earth ecosystem.