What about the stars with the harder X-rays and narrower lines: q1 Ori C and t Sco?
t ScoŐs Ne X line overplotted with a delta function model.
The lines in t Sco look more like those in coronal sourcesÉand the lines in q1 Ori C arenŐt a whole lot broader.
Capella
t Sco
z Pup