Abstract
Damineli (1996) and Damineli et al. (1997) recently discovered a possible strict periodicity of 5.52 years in the intensity of the high-excitation lines of η Car and the radial velocity variations associated with these cycles. These observations suggest that η Car is a long-period binary.
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References
Damineli, A. (1996): ApJ 460, L49
Damineli, A., Conti, P.S., Lopes, D.F. (1997): New Astronomy 2, 107
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© 1998 Springer-Verlag Berlin Heidelberg
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Stahl, O., Damineli, A. (1998). Long-Term Spectroscopic Variability of η Carinae. In: Kaper, L., Fullerton, A.W. (eds) Cyclical Variability in Stellar Winds. ESO Astrophysics Symposia. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-68597-5_23
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DOI: https://doi.org/10.1007/978-3-540-68597-5_23
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