Abstract
We evaluate the accuracy with which the properties of late-type giant star winds can be estimated by fitting ultraviolet line profiles and radio continuum emission. Our test cases include the stars α TrA (K4 II), λ Vel (K4 Ib-II), and ζ Aur (K4 Ib + B5 V). Of particular interest is the sensitivity of the line profiles to the wind parameters Ṁ, v ∞, v turb, β, and T wind. We are finding that while accurate and reliable values of Ṁ are difficult to obtain, the most reliable values come from the application of two or more independent techniques.
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Linsky, J.L., Harper, G.M., Bennett, P.D., Brown, A., Valenti, J. (1998). A Critical Evaluation of Mass-Loss Rates and Wind Properties of Evolved Late-Type Stars. 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_5
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DOI: https://doi.org/10.1007/978-3-540-68597-5_5
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