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Two O2 If*/WN6 stars possibly ejected from the massive young Galactic cluster Westerlund 2
Stars: individual:WR20aa - Stars: individual:WR20c - Stars:Wolf-Rayet (Galaxy): open clusters and associations: individual:Westerlund 2
2011/10/19
In this paper we report the identification of two new Galactic O2 If*/WN6 stars (WR20aa and WR20c), in the outskirt of the massive young stellar cluster Westerlund 2. The morphological similarity betw...
O2+ Recombination abundances in planetary nebulae。