Mid-IR observations of a C2 flare: Characterizing the flare dynamics at Chromospheric heights

FERNANDO MARCELO LÓPEZ; GIMÉNEZ DE CASTRO, C. GUILLERMO; CRISTINA MANDRINI; PAULO SIMOES; CRISTIANI, GERMÁN; DALE GARY; FRANCILE, CARLOS; DÉMOULIN, PASCAL

Congreso; SolFER Spring 2021 Meeting; 2021

The analysis of solar flares in mid-IR wavelengths is an unexplored field of research and just few events have been reported in the literature (e.g. Kauffman et al. 2013, 2015; Miteva et al. 2016; Gimenez de Castro et al. 2018). These events, with the exception of a C7 class observed by Penn et al. (2016), were all classified in soft X-rays as X and M class events. These studies, reported a temporal and/or spatial agreement of mid-IR emission with white-light signal (Kauffman et al. 2013, Gimenez de Castro et al. 2018, Penn et al. 2016), microwaves (Kauffman et al. 2013) and ultraviolet (UV) emission (Miteva et al. 2016). In this work we report the observation of a C2.0 class flare in mid-IR wavelengths at λ = 10 μm (ν = 30 THz). The mid-IR emission shows a very good agreement with the emission from other instruments observing the chromosphere, particularly with the UV data from AIA in 1600 and 1700 Å. We could not find any evidence of white-light emission associated to this event. On the other side, hard X-rays data is not available during the flare time.