Phase Differences and Gains between Intensity and Velocity in Low-Degree Acoustic Modes Measured by SOHO
Helioseismic instruments aboard SOHO are making possible a more accurate way of investigating the internal structure of the Sun. Making use of the different techniques and characteristics of these instruments, it is possible to measure solar oscillations as variations of the photospheric velocity (GOLF, MDI) or as irradiance and radiance
Jiménez, A. et al.
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1999