Abstract
Coronal Mass Ejections (CMEs) and Corotating Interaction Regions (CIRs) are major sources of magnetic storms on Earth and are therefore considered to be the most dangerous space weather events. The Observatories of Solar Corona and Active Regions (OSCAR) mission is designed to identify the 3D structure of coronal loops and to study the trigger mechanisms of CMEs in solar Active Regions (ARs) as well as their evolution and propagation processes in the inner heliosphere. It also aims to provide monitoring and forecasting of geo-effective CMEs and CIRs. OSCAR would contribute to significant advancements in the field of solar physics, improvements of the current CME prediction models, and provide data for reliable space weather forecasting. These objectives are achieved by utilising two spacecraft with identical instrumentation, located at a heliocentric orbital distance of 1 AU from the Sun. The spacecraft will be separated by an angle of 68� to provide optimum stereoscopic view of the solar corona. We study the feasibility of such a mission and propose a preliminary design for OSCAR.
Highlights
The OSCAR mission concept was conceived during the Alpbach Summer School1 2013 on space weather over a period of 2 weeks
We reported a first study for an innovative space weather mission concept, OSCAR
We presented the scientific basis for a twin spacecraft mission, leading and trailing the Earth with a separation angle of 68°
Summary
Antoine Strugarek1,2,*, Nils Janitzek, Arrow Lee, Philipp Löschl, Bernhard Seifert, Sanni Hoilijoki, Emil Kraaikamp, Alankrita Isha Mrigakshi, Thomas Philippe, Sheila Spina, Malte Bröse, Sonny Massahi, Liam O’Halloran, Victor Pereira Blanco, Christoffer Stausland, Philippe Escoubet, and Günter Kargl
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