SOAR OPTICAL AND NEAR-INFRARED SPECTROSCOPIC SURVEY OF NEWLY DISCOVERED MASSIVE STARS IN THE PERIPHERY OF GALACTIC MASSIVE STAR CLUSTERS I-NGC 3603

@article{RomanLopes2016SOAROA,
  title={SOAR OPTICAL AND NEAR-INFRARED SPECTROSCOPIC SURVEY OF NEWLY DISCOVERED MASSIVE STARS IN THE PERIPHERY OF GALACTIC MASSIVE STAR CLUSTERS I-NGC 3603},
  author={Alexandre Roman-Lopes and G A P Franco and David Sanmartim},
  journal={The Astrophysical Journal},
  year={2016},
  volume={823},
  pages={96}
}
In this work, we present a spectroscopic study of very massive stars found outside the center of the massive stellar cluster NGC3603. From the analysis of SOAR spectroscopic data and related optical-NIR photometry, we confirm the existence of several very massive stars in the periphery of NGC 3603. The first group of objects (MTT58, WR42e and RFS7) is compound by three new Galactic exemplars of the OIf*/WN type, all of them with probable initial masses well above 100 Msun and estimated ages of… 
The origin of very massive stars around NGC 3603
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Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT) through the FONDECYT project [1170476]; QUIMAL project [130001]; PREI DGAPA UNAM program for academic exchange scholarship;
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