Alfvénföreläsning: Cluster from 20 years of multiprobing the magnetosphere

Föreläsningen kommer handla om kluster från 20 års multiprobing av magnetosfären och ges av rymdplasmafysikern Phillippe Escoubet från ESA/ESTEC. Föreläsningen kommer hållas i föreläsningssalen D3 på KTH, 13e September kl 14.00-15.00. Kaffe serveras från 13.40.

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After 22 years in space, the European Space Agency’s Cluster mission studying the near Earth’s environment is continuing to deliver groundbreaking results. These results benefit greatly from the fundamental and pioneering work of Hannes Alfvén on the aurora and on magnetohydrodynamic waves. The main goal of the Cluster mission, made of four identical spacecraft each carrying 11 complementary instruments, is to study in three dimensions the key plasma processes at work in the main regions of the Earth’s environment: solar wind and bow shock, magnetopause, polar cusps, magnetotail, and auroral zone. Cluster uses the ability to move the four spacecraft with respect to each other, according to the science goal to be pursued. Science highlights are presented from the Cluster mission from various places of the Earth’s magnetosphere. Special emphasis is on the Cluster discoveries in the formation of auroras and black auroras. Finally, the upcoming Solar wind Magnetosphere Ionosphere Link Explorer (SMILE) mission will be presented. This unique mission is dedicated to observing the solar wind - magnetosphere coupling via simultaneous in situ solar wind measurements, soft X-ray imaging of the shocked solar wind, and UV imaging of global auroral distributions.