A new large-amplitude slowly pulsating sdB star
We report the discovery of a new large-amplitude slowly pulsating sdB star, EC 21324-1346. Although we have only a small amount of data, it is clear that the star exhibits more than one mode of variation; the present data can be adequately represented with three or four frequencies in the range 170-330 μHz (about 0.8 to 1.6 hours). The amplitude of the dominant frequency is about 0.004 mag - large for a slowly pulsating sdB star.
Physics, Astronomy, and Materials Science
Stars: horizontal-branch, Stars: individual (EC 21324-1346), Stars: oscillations
Kilkenny, D., D. O'Donoghue, M. D. Reed, N. Hambly, and H. McGillivray. "A New Large-Amplitude Slowly Pulsating Sdb Star." Baltic Astronomy 15 (2006): 317-320.