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)
q1 Ori C
(O7 V)
t Sco
(B0 V)
b Cru
(B0.5 IV)
12
12
15
15