Abstract
We have undertaken an extensive program to investigate atmospheric shock dynamics in Mira variables through monitoring the MgII emission strengths versus phase. Theoretical calculations of Bowen (1987), which represent the structural variations in the extended atmosphere of a pulsating Mira, are presented in addition to the MgII observations. The model calculations generate density, temperature and velocity structures as determined by stellar parameters and by interactions of the driving amplitude, dust opacity and thermal relaxation processes. The main diagnostic provided by the models is the total emitted shock luminosity versus phase, which can be compared to the observed MgII emission. Models and observations are presented for three Miras: S Car, R Car and T Cep.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Bowen, G.H. 1987, Ap.J. (submitted).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1988 Kluwer Academic Publishers
About this paper
Cite this paper
Brugel, E.W., Beach, T.E., Willson, L.A., Bowen, G.H. (1988). Atmospheric Shocks in Mira Variables — MgII Emission. In: Mikolajewska, J., Friedjung, M., Kenyon, S.J., Viotti, R. (eds) The Symbiotic Phenomenon. Astrophysics and Space Science Library, vol 145. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-2969-2_12
Download citation
DOI: https://doi.org/10.1007/978-94-009-2969-2_12
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-7833-7
Online ISBN: 978-94-009-2969-2
eBook Packages: Springer Book Archive