Focus
in on a characteristic portion of the spectrum
There is clearly a range of line profile morphologies
from star to star
Ne X
Ne X
Ne IX
Ne IX
Fe XVII
Fe XVII
z Pup
(O4 I)
z Ori
(O9.5
II)
d Ori
(O9.7 I)
t Sco
(B0 V)
b Cru
(B0.5
IV)
12Å
12Å
15Å
15Å
q1 Ori C
(O7 V)