We have obtained 175 spectral types for stars in 30 Doradus of which 105
are new. The total number of stars with spectral classification
is now 261, which
allows a thorough spectrophotometric analysis of the region. We have
used the [OIII] nebular lines to reduce the contamination effects of the
ionised nebula to the stellar spectra,
improving the reliability of the
spectral classification from ground based spectroscopy. Our spectral
classification is good to about subtypes.
The spatial distribution of spectral types
suggests the presence of a later type group 2' south of R136. The radial
distribution of stars according to the masses estimated from their
spectral types shows a more compact distribution for the most massive stars,
indicating the existence of mass segregation in the cluster.
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