Abstract
“It is a significant fact that the emission and absorption lines of Wolf-Rayet spectra cannot be regarded as being formed in one body of gas at one representative temperature and pressure” (Underhill 1968)“I think it fair to say that the demonstration of… diversity has brought the Wolf-Rayet stars from being a curiosity to being an important part of the ‘main stream’ evolution of all massive stars” (Smith 1982)
Publisher
Cambridge University Press (CUP)