An Upper Limit on the Temporal Variations of the Solar Interior Stratification
We have analyzed changes in the acoustic oscillation eigenfrequencies measured over the past 7 years by the GONG, MDI, and LOWL instruments. The observations span the period from 1994 to 2001 that corresponds to half a solar cycle, from minimum to maximum solar activity. These data were inverted to look for a signature of the activity cycle on the
Eff-Darwich, A. et al.
Fecha de publicación:
11
2002