Secular Evolution in Z Tauri
Volume 34 number 1 (2006)
- Aaron Price
- AAVSO,
- Geir Klingenberg
- Norwegian
Abstract
Z Tauri is a Mira variable with observations in the AAVSO International Database dating back 85 years. Wavelet analysis of the observations reveals a period decline of around 13% from 500 days to 442 days per cycle. In addition, flat minima suggest the possible presence of an undetected companion.