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UV Observations of λ Cas: Intermittent Mass-Loss Enhancement

Published online by Cambridge University Press:  14 August 2015

H.F. Henrichs
H.F. Henrichs*
Affiliation:
Astronomical Institute, University of Amsterdam, Roetersstraat 15, 1018 WB Amsterdam

Extract

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Twenty one high resolution IUE observations made over a two year interval revealed remarkable changes in the profiles of the resonance lines of C IV, N V and Si IV in the B 0.5 IVe star λ Cas. Narrow (FWHM < 100 km s−1), blue shifted (v < 1500 km s−1), absorption components of varying strenghts are observed in addition to the broad, asymmetric, low-velocity absorption lines which seem to be steady.

Type
VII. UV Observations and Mass Loss
Information
Symposium - International Astronomical Union , Volume 98: Be Stars , 1982 , pp. 431 - 435
Copyright
Copyright © Reidel 1982 

References

Lamers, H., Gathier, R., & Snow, T., 1981, in preparation. Google Scholar
Henrichs, H., Hammerschlag-Hensberge, G., Howarth, I., Barr, P., in preparation.Google Scholar
Henrichs, H., Hammerschlag-Hensberge, G., & Lamers, H., Proc. 2nd European IUE Conference, Tübingen, Germany, ESA Sp-157, 147, April 1980 (Paper 1) Google Scholar