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Observations of Of-star wind variability
- Source :
- Astrophysical Journal, Part 1. 271
- Publication Year :
- 1983
- Publisher :
- United States: NASA Center for Aerospace Information (CASI), 1983.
-
Abstract
- Nightly variations in He II 4686 A have been observed in four Of stars, HD 152408, HD 151804, 9 Sge, and Lambda Cep. Three of the stars were not previously known to show such variations. In one case, Lambda Cep, simultaneous observations with IUE showed variations in ultraviolet (UV) resonance-line profiles during the same time period as those in He II 4686 A. This implies that the perturbations causing the He II 4686 A variability affect the entire wind acceleration zone.
- Subjects :
- Astrophysics
Subjects
Details
- Language :
- English
- ISSN :
- 0004637X
- Volume :
- 271
- Database :
- NASA Technical Reports
- Journal :
- Astrophysical Journal, Part 1
- Notes :
- NSG-7459, , NSG-5300, , NSF AST-80-24321, , NAS5-26409
- Publication Type :
- Report
- Accession number :
- edsnas.19830061844
- Document Type :
- Report
- Full Text :
- https://doi.org/10.1086/161236