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arXiv · astro-ph/9812070

The Stellar Content of Obscured Galactic Giant H II Regions

R. D. Blum·A. Damineli·P. S. Conti
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Abstract

Near infrared images of the Galactic giant HII region W43 reveal a dense stellar cluster at its center. Broad band JHK photometry of the young cluster and K-band spectra of three of its bright stars are presented. The 2 micron spectrum of the brightest star in the cluster is very well matched to the spectra of Wolf-Rayet stars of sub-type WN7. Two other stars are identified as O type giants or supergiants by their NIII and CIV emission. The close spatial clustering of O and the hydrogen WN type stars is analogous to the intense star burst clusters R136 in the Large Magellanic Cloud and NGC3603 in the Galaxy.

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R. D. Blum, A. Damineli, P. S. Conti. 1998-12-03. The Stellar Content of Obscured Galactic Giant H II Regions. https://doi.org/10.1086/300791

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