Berghmans, David ; Harra, Louise K. ; Zhukov, Andrei ; Auchere, Frederic ; Long, David ; Schuehle, Udo ; Rochus, Pierre

Talk presented at 43rd COSPAR Scientific Assembly. (Australia/virtual) on 2021-01-31

Abstract: The Extreme Ultraviolet Imager (EUI) is part of the remote sensing instrument package of the ESA/NASA Solar Orbiter mission that will explore the inner heliosphere and observe the Sun from vantage points close to the Sun and out of the ecliptic. With EUI we aim to improve our understanding of the structure and dynamics of the solar atmosphere, globally as well as at high resolution, and from high solar latitude perspectives. The EUI consists of three telescopes, the Full Sun Imager (FSI) and two High Resolution Imagers (HRIs), which are optimised to image in Lyman-a and EUV (174 \AA, 304 \AA) to provide a coverage from chromosphere up to corona. The EUI instrument design will be reviewed, and its scientific objectives and plans will be discussed. Early results of the EUI commissioning will be presented.

Keyword(s): Solar Orbiter ; EUI ; EUV
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