Multi-wavelength observations and modeling of a microflare: constraining non-thermal particle acceleration
In this work we analyze a small B-class flare that occurred on 29 diamond painting strand en zee April 2021 and was observed simultaneously by the Interface Region Imaging Spectrograph (IRIS) and the Nuclear Spectroscopic Telescope Array (NuSTAR) X-ray instrument.The IRIS observations of the ribbon of the flare show peculiar spectral characteristic