Hydrodynamic model of torsional oscillations of the Sun

1Loginov, AA, 1Cheremnykh, OK, 2Krivodubskij, VN, 1Salnikov, NN
1Space Research Institute of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine, Kyiv, Ukraine
2Astronomical Observatory of the Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
Kosm. nauka tehnol. 2012, 18 ;(1):74–81
Publication Language: Russian
Hydrodynamic nature of solar torsional oscillations is justified on the basis of comparison of observational results with some results of our numerical simulations of global flows in the solar convection zone. These oscillations are shown to be a toroidal component of the global three-dimensional oscillatory flow which is equator asymmetric. Physical mechanism of torsional oscillations is the loss of stability of the solar differential rotation.
Keywords: Sun, torsional oscillations
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