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suppression and this fraction is a strong function of mass. Strong core fields only occur in red giants above 1.1 solar masses (1.1 \msol),  %[this setence seems to break flow between previous and subsequent sentence] Low-mass red giants, which burned hydrogen in a radiative core, do not posses strong internal magnetic fields.   and the occurrence rate is   at least 60\% for intermediate-mass stars (1.6--2.0 \msun), suggesting indicating  that powerful dynamos are very common in the convective cores of these stars.