The power spectra in the interval of periods from 5 minutes to several hours have been obtained from photoelectric observations of BY Dra. The existence of the oscillations with periods of 188±17 min, 100±5 min, semiamplitudes of 0.002 - 0.005m is confirmed and, moreover, a group of oscillations within periods of 10 - 59 min, semiamplitudes as small as 0.001m is revealed. It is supposed that these oscillations are mainly p-modes but the oscillation with the period of 188 min may be a fundamental oscillation.
Izvestiya Ordena Trudovogo Krasnogo Znameni Krymskoj Astrofizicheskoj Observatorii
- Pub Date:
- Red Dwarfs: Stellar Oscillations