MWC 349A and B Are Not Gravitationally Bound: New Evidence

@article{Drew2017MWC3A,
  title={MWC 349A and B Are Not Gravitationally Bound: New Evidence},
  author={Patrick Drew and Vladimir S. Strelnitski and H. A. Smith and Jessica Mink and Regina Jorgenson and John M. O’Meara},
  journal={The Astrophysical Journal},
  year={2017},
  volume={851},
  pages={136}
}
The age and evolutionary status of MWC 349A, the unique emission-line star with maser and laser radiation in hydrogen recombination lines, remain unknown, because the spectrum of the star is veiled by bright emission from the ionized disk and wind. The major argument for this massive (>10 M ⊙) star being evolved is its association with a close-by (2.4 arcsec) companion, MWC 349B, whose B0III spectrum implies an age of a few million years. However, newly obtained high-resolution spectra of MWC… Expand

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