The strength of the He I lambda6678 line in OB supergiants
Journal Article
·
· Astrophys. J., Lett., v. 183, no. 1, pp. L39-L41
Comparison of measured strengths of the He I lambda 6678 in 27 OB supergiants with recent calculations by Auer and Mihalas indicate that the non- LTE computations completely fail to explain the observed behavior of the line. It is suggested that this failure reflects the dominance of extended envelope and/ or velocity field effects in the line formation process in supergiant atmospheres. (auth)
- Research Organization:
- Steward Observatory, University of Arizona, Tucson
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-29-021828
- OSTI ID:
- 4317851
- Journal Information:
- Astrophys. J., Lett., v. 183, no. 1, pp. L39-L41, Journal Name: Astrophys. J., Lett., v. 183, no. 1, pp. L39-L41; ISSN AJLEA
- Country of Publication:
- United States
- Language:
- English
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