000007048 001__ 7048
000007048 005__ 20240916080354.0
000007048 037__ $$aCTALK-2024-0143
000007048 100__ $$aBerghmans, David
000007048 245__ $$aWaves in coronal structures up to 1 Rsun?
000007048 260__ $$c2024
000007048 269__ $$c2024-09-10
000007048 520__ $$aAt Solar Orbiter’s perihelion, the FSI telescope of the EUI instrument images the EUV corona up to 1 Rsun above the limb with a plate-scale better than 1000 km on the Sun. Here we report on exceptional FSI image sequences in the 17.4nm bandpass with deep exposures and a 30s cadence during the so-called “Density Fluctuations” and “Probe Quadrature” Solar Orbiter Observing Plans (SOOPs). These data, with unique high S/N in the high EUV corona, reveal ubiquitous intensity fluctuations propagating outward along open magnetic field-lines up to 1 Rsun above the limb, well beyond the FOV of traditional EUV imagers. Difference movies suggest these propagating intensity fluctuations have both a longitudinal as well as a transversal “swaying” component. We will discuss the relation of these high-altitude fluctuations with similar features reported before in the low solar corona (eg COMP & AIA data), as well as higher up in simultaneous Metis data. Implications for the energisation of the solar wind will be discussed.
000007048 594__ $$aSTCE
000007048 6531_ $$acorona
000007048 6531_ $$aEUV
000007048 6531_ $$aEUI
000007048 6531_ $$aMHD waves
000007048 700__ $$aZhukov, Andrei
000007048 700__ $$aVerbeeck, Cis
000007048 700__ $$aLim, Daye
000007048 700__ $$aKraaikamp, Emil
000007048 700__ $$aAuchère, Frederic
000007048 700__ $$aAndretta, Vincenzo
000007048 773__ $$t17th European Solar Physics Meeting
000007048 8560_ $$fdavid.berghmans@ksb-orb.be
000007048 85642 $$ahttps://indico.ict.inaf.it/event/2553/contributions/19517/
000007048 85642 $$ahttps://www.sidc.be/EUI/data/presentation/20240910-ESPM-Waves.key.pdf
000007048 906__ $$aContributed
000007048 980__ $$aCTALKCONT