VLT observations of metal-rich extra galactic HIIregions: I. Massive star populations and the upper end of the IMF

@article{Pindao2002VLTOO,
  title={VLT observations of metal-rich extra galactic HIIregions: I. Massive star populations and the upper end of the IMF},
  author={M. Pindao and D. Schaerer and R. G. Delgado and G. Stasińska},
  journal={Astronomy and Astrophysics},
  year={2002},
  volume={394},
  pages={443-457}
}
We have obtained high quality FORS1/VLT optical spectra of 85 disk H ii regions in the nearby spiral galaxies NGC 3351, NGC 3521, NGC 4254, NGC 4303, and NGC 4321. Our sample of metal-rich H ii regions with metallicities close to solar and higher reveal the presence of Wolf-Rayet (WR) stars in 27 objects from the blue WR bump (4680 A) and 15 additional candidate WR regions. This provides for the first time a large set of metal-rich WR regions. Approximately half (14) of the WR regions also show… Expand
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