ionization -2 
hden 0 
blackbody 4e4 K vary
grid 4.5 5 0.1 log 
element oxygen ionization -9 -0.5 -0.5
stop zone 1
set dr 0 
save line list ratio "varyT.lin" "lines.dat" no hash
save grid "varyT.grd" last no hash
save overview "varyT.ovr" last no hash