6973 20240416120710.0 POSTER-2024-0066 Berghmans, D. EUI High Resolution Observations of Decayless Oscillations 2024 2024-04-08 Decayless oscillations are routinely observed with AIA and now also with HRIEUV. Co-observations EUI & AIA detect the same decayless oscillations, confirming that they are of solar origin. Decayless oscillations are different from flare-induced oscillations as they do not dampen during their lifetime and they are independent of flares. In fact the driver is unknown. These oscillations have been interpreted as kink-waves and the ratio between the loop length and the period tends to be in the order of 1 Mm/s, suggestive of the coronal Alfvén speed. STCE Solar Orbiter EUI waves Lim, D. Petrova, E. Zhong, S. Shrivastav, A.K. Mandal, S. Kraaikamp, E. Verbeeck, C. Stegen, K. Zhukov, A. Gissot, S. Van Doorsselaere, T. Joint Solar Orbiter, Parker Solar Probe, and DKIST Meeting, San Antonio, Texas david.berghmans@ksb-orb.be https://eclipse2024sa.com 2808615 http://publi2-as.oma.be/record/6973/files/posterFinal.pdf 22726 http://publi2-as.oma.be/record/6973/files/posterFinal.gif?subformat=icon icon 25592 http://publi2-as.oma.be/record/6973/files/posterFinal.jpg?subformat=icon-180 icon-180 CPOSTER