Helioseismic evidence of two solar granulation timescales
The signature of two different scales of solar granulation in the power spectrum of disk integrated irradiance time series is presented. The fitted timescales for granulation (τGR1≈ 237~s and τGR2≈ 62~s) are in good agreement with the characteristic lifetimes derived from recent image time series of the Sun's surface (Del Moro 2004); and probably
Vázquez Ramió, H. et al.
Fecha de publicación:
11
2005