NEON ABUNDANCE IN WOLF-RAYET STELLAR WINDS

we wish to determine the neon/helium abundance ratio in wolfrayet winds by measuring in sws aot band3a (12.0 16.5 micron) with aot sws06 the flux of the neii 12.184 micron and neiii 15.55 micron and the neighbouring heii emission lines in wr stars with galactocentric distances ranging from 6 kpc to 10 kpc from the sun. we wish simulataneous spectrophotometric observations in sws aot band1a (2.38 2.60) where emission lines of civ, heii and he i occur. the width of those spectral lines will be a measure of the wr steller wind velocities, since the neiii lines are formed where the winds have reached their terminal velocities. the abundance and velocities together will allow the determination of mass loss rates. the neon abundance determinations are a crucial check of stellar evolution models for massive stars, which predict a much larger than solar neon abundance. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]