Detection of Doppler velocity differences between ions and neutrals in an erupting prominence

Yuwei Huang, Kiyoshi Ichimoto, Tetsu Anan

We performed a spectroscopic observation of an erupting prominence occurred on the solar limb on 2015 May 8th in He I 706.5 nm, O I 777.2 nm triplet and Ca II 849.8 nm lines to inv…