The oscillations are standing pressure and mixed pressure-gravity modes that are excited over a range in frequency, with the amplitudes roughly following a bell-shaped distribution. Unlike opacity-driven oscillators, all the modes in the frequency range are excited, making the oscillations relatively easy to identify.
The oscillations are standing pressure and mixed pressure-gravity modes that occur over a range in frequency, with amplitudes following a bell-shaped distribution. Unlike opacity-driven oscillators, all the modes within the frequency range are excited, making the oscillations relatively easy to identify.