Atmospheric parameters and nitrogen abundances to investigate the role of binarity and the width of the main sequence

@inproceedings{McEvoy2014AtmosphericPA,
  title={Atmospheric parameters and nitrogen abundances to investigate the role of binarity and the width of the main sequence},
  author={Catherine M. McEvoy and Philip L. Dufton and C. J. Evans and Venu M. Kalari and Nevena St. Markova and Sergio Sim'on-D'iaz and Jacco Vink and Nolan R. Walborn and Paul A. Crowther and Alex de Koter and Selma E. de Mink and P. R. Dunstall and Vincent H'enault-Brunet and Artemio Herrero and Norbert Langer and Daniel J. Lennon and Jes'us Ma'iz Apell'aniz and Francisco Najarro and Joachim Puls and Hugues Sana and Fabian R. N. Schneider and William D. Taylor},
  year={2014}
}
Context. Model atmosphere analyses have been previously undertaken for both Galactic and extragalactic B-type supergiants. By contrast, little attention has been given to a comparison of the properties of single supergiants and those that are members of multiple systems. Aims. Atmospheric parameters and nitrogen abundances have been estimated for all the B-type supergiants identified in the VLTFLAMES Tarantula survey. These include both single targets and binary candidates. The results have… 
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