The Acoustic Cutoff Frequency of the Sun and the Solar Magnetic Activity Cycle
The acoustic cutoff frequency—the highest frequency for acoustic solar eigenmodes—is an important parameter of the solar atmosphere as it determines the upper boundary of the p-mode resonant cavities. At frequencies beyond this value, acoustic disturbances are no longer trapped but are traveling waves. Interference among them gives rise to higher
Jiménez, A. et al.
Fecha de publicación:
12
2011