Chromospheric velocities in an M3.2 flare using He I 1083.0 nm and Ca II 854.2 nm

C. Kuckein, M. Collados, A. Asensio Ramos +6

We study the chromospheric LOS velocities during the GOES M3.2 flare (SOL2013-05-17T08:43) using simultaneous spectroscopic data of the He I 1083.0 nm triplet and Ca II 854.2 nm li…