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Optical Spectroscopic Monitoring of the Carbon-Rich Post-AGB Star HD 56126: Pulsation and Shock Waves
Published online by Cambridge University Press: 25 May 2016
Abstract
A spectroscopic monitoring of the post-AGB star HD 56126 was performed as regularly as possible over a 14-month interval in order to study atmospheric motions that could be associated with shock wave propagation through the stellar atmosphere. Some spectral features are strongly variable on a timescale of a few days. Radial velocity variations are also good evidence for complex atmospheric dynamics, in agreement with the recently found photometric variability. The data point to a pulsating nature for HD 56126, with a main period of 27.3 days.
- Type
- Session V — Post-AGB Stars
- Information
- Symposium - International Astronomical Union , Volume 177: The Carbon Star Phenomenon , 2000 , pp. 237 - 244
- Copyright
- Copyright © Kluwer 2000