Spectral Features of the Solar Transition Region and Chromospheric Lines at Flare Ribbons Observed with IRIS

Lingfang Wang, Ying Li, Qiao Li +2

We report on the spectral features of the Si IV 1402.77 Å, C II 1334.53 Å, and Mg II h or k lines, formed in the layers from the transition region to the chromosphere, in three two…