Préparation du programme d’hélioseismologie de PICARD:
Symmetric part of the internal solar rotation rate with respect to the equator. Iso-contours are shown every 10 nHz from 300 nHz up to 480 nHz. This was obtained by inverting the frequency splittings estimated from PICARD/SODISM intensity images over the period from April 16 to November 10 2011. The solution below 0.3 solar radius is poorly constrained by the data and is not shown.
T Corbard et al 2013 J. Phys.: Conf. Ser. 440 012025 doi:10.1088/1742-6596/440/1/012025