A role of magnetic pumping mechanisms in the formation of a sunspot «royal zone»

1Krivodubskij, VN
1Astronomical Observatory of the Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
Kosm. nauka tehnol. 2005, 11 ;(3-4):112-119
Publication Language: Russian
Two «magnetic antibuoyancy- mechanisms: i) lurbulenl diamagnetlsm and ii) magnetic pumping produced by radial inhomugeneily of plasma density (∆p -effect) are attracted to compensate the flux losses caused by the magnelic buoyancy in the generation region in the solar convection zone (SCZ). The Sun's roiation which endows the ∆p -effect with new properties is laken into accounl. It is shown dial al high and polar latitudes anlibuoyancy effects block Ihe magnetic fields in the deep layers of the SCZ. At the same time, in Ihe deep layers localed a! middle to low latitudes Ihe rotational grad rho effcel causes Ihe upward magnelic pumping which logcther with buoyancy facilitates ihe removal of strong magnetic fields (300–400 mT( lo solar surface where they then arise in ihe «royal zone* as sunspots.
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