Abstract

We study temporal variation in the solar angular momentum, J, rotational kinetic energy, T, and the rotational contribution to the gravitational multipole moments J2k of the Sun, inferred from helioseismic data from GONG and MDI over the last 11 years, covering most of the cycle 23. We have found that the variations in J and T at high latitudes (>45°) through the convection zone are correlated positively with solar activity, while at low latitudes they are correlated negatively, except for the top 10% of solar radius, where the correlation is positive.

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