On the Evolutionary Phase and Mass Loss of the Wolf-Rayet-like Stars in R136a*

  title={On the Evolutionary Phase and Mass Loss of the Wolf-Rayet-like Stars in R136a*},
  author={A. de Koter and Sara R. Heap and Ivan Hubeny},
  journal={The Astrophysical Journal},
We report on a systematic study of the most massive stars, in which we analyzed the spectra of four very luminous stars in the Large Magellanic Cloud. The stars lie in the 30 Doradus complex, three of which are located in the core of the compact cluster, R136a (R136a1, R136a3, and R136a5), and the fourth (Melnick 42), located about 8'' north of R136a. Low-resolution spectra (<200 km s-1) of these four stars were obtained with the GHRS and FOS spectrographs on the Hubble Space Telescope. The… 
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