To be published in the Proceedings of IAU Colloquium 169 on Variable and Non-Spherical Stellar Winds in Luminous Hot Stars, ed. B. Wolf (Springer-Verlag, Berlin, Heidelberg). Submitted 21 September 1998
The physical basis for interpreting observations of nebular morphology around massive stars in terms of the evolution of the central stars is reviewed, and examples are discussed, including NGC 6888, OMC-1, and eta Carinae.
uncompressed postscript (3525 Kb)
Postscript from astro-ph (309 Kb, with lower res figure 4)
MPI Astronomie theory group