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The development of the new Be phase of 59 Cyg in the visual and in the far UV in 1978-1983
- Source :
- Astronomy and Astrophysics. 152(2)
- Publication Year :
- 1985
- Publisher :
- United States: NASA Center for Aerospace Information (CASI), 1985.
-
Abstract
- A tentative synthesis of visual and IUE observations of 59 Cyg during 1978-1983 when the new Be phase began to develop is presented. The study reveals correlation between those spectral features originating in the cool H-alpha-emitting envelope and features originating in superionized regions exhibiting C IV and N V lines. The long-term variability patterns of the V/R ratio, the H-alpha emission, and the C IV absorption reveal striking similarities and a close correlation. The early development of the new Be phase is accompanied by remarkably large and striking C IV line-profile changes. It is also suggested that short-term V/R variations at H-alpha may be associated with short-term C IV changes.
- Subjects :
- Astrophysics
Subjects
Details
- Language :
- English
- ISSN :
- 00046361
- Volume :
- 152
- Issue :
- 2
- Database :
- NASA Technical Reports
- Journal :
- Astronomy and Astrophysics
- Notes :
- NSG-5300, , NATO-628/84, , NAS5-25774, , NSG-5422, , NAS5-26409
- Publication Type :
- Report
- Accession number :
- edsnas.19860035443
- Document Type :
- Report