Huang, Ziwen ; Teriaca, Luca ; Aznar Cuadrado, Regina ; Chitta, L.P. ; Mandal, S. ; Peter, H. ; Schühle, U ; Solanki, S.K. ; Auchère, F. ; Berghmans, D. ; Buchlin, É. ; Carlsson, M. ; Fludra, A. ; Fredvik, T. ; Giunta, A. ; Grundy, T. ; Hassler, D. ; Parenti, S. ; Plaschke, F.

Poster presented at SOLARNET conference: The Many Scales of the Magnetic Sun on 2023-05-08

Abstract: The smallest EUV brightening events (hereafter EUI brightenings) that were detected so far have recently been uncovered by the High Resolution EUV telescope (HRIEUV), which is part of the Extreme Ultraviolet Imager (EUI) on board Solar Orbiter. We study the thermal properties of EUI brightening events by simultaneously observing their responses at different wavelengths using spectral data from the Spectral Imaging of the Coronal Environment (SPICE) and imaging data from EUI. Our results indicate that at least some EUI brightenings barely reach coronal temperatures.

Keyword(s): Solar Orbiter ; EUI ; corona ; campfires ; EUV brightenings
Links: link