Detection of Wolf-Rayet stars of WN and WC subtype in Super Star Clusters of NGC 5253
作者： Daniel Kunth , Georges Meynet , Thierry Contini , Daniel Schaerer
DOI: 10.1086/310659
关键词:
摘要: We present spectroscopic observations of the central star clusters in NGC 5253 aim which is to search for WC stars. Our show presence Wolf-Rayet (WR) stars not only WN but also subtype two forming regions corresponding maximum optical and UV emission. The massive population we derive consistent with young bursts ~3 4 Myr. region emission found provide dominant contribution ionizing flux as opposed less extinguished brightness. WR near N-enriched by Walsh & Roy (1987, 1989) Kobulnicky et al. (1997) suggests they are a possible source N. It presently unclear whether or our detection compatible normal observed He/O C/O abundance ratios.
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