Flip-flop cycles in solar and stellar activity
Abstract
Doppler images and long time series of photometric observations of cool active stars reveal permanent active longitudes on their surfaces. They are found to alternate their dominant activity quasi-periodically which indicates a new type of the activity cycles, flip-flop cycles. In this talk I will review properties of active longitudes and flip-flop cycles on different types of active stars including the Sun.
- Publication:
-
IAU Joint Discussion
- Pub Date:
- August 2006
- Bibcode:
- 2006IAUJD...8E..64B