deletions | additions       diff --git a/While_the_envelope_convection.tex b/While_the_envelope_convection.tex  index cba96a6..a3d1180 100644  --- a/While_the_envelope_convection.tex  +++ b/While_the_envelope_convection.tex 
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observable small scale velocity fields at the stellar surface   and in the stellar wind, ``microturbulence".   A similar idea has been used to explain microturbulence   in low mass stars \citep{Edm78}, \cite{Edm78},  in which deeper envelope convection zones reach the photosphere.   While \citet{Edm78} \cite{Edm78}  concludes that the same mechanism {\em cannot} explain microturbulent velocities in O and B stars,   the iron-peak induced sub-photospheric convection zones in these stars had not yet been   discovered. We demonstrate in this paper that these convection zones may not only