Spectroscopy and Differential Emission Measure diagnostics of a coronal dimming associated with a fast halo CME

Astrid M. Veronig, Peter Gömöry, Karin Dissauer +2

We study the coronal dimming caused by the fast halo CME (deprojected speed v =1250 km s ${}^{-1})$ associated with the C3.7 two-ribbon flare on 2012 September 27, using Hinode/EIS s…