Possible nature of the Maunder minimum

Details Possible nature of the Maunder minimum Possible nature of the Maunder minimum

Apr 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979izssr..43..716d&link_type=abstract

(Seminar po Iadernoi Kosmicheskoi Fizike, 10th, Leningrad, USSR, Oct. 1978.) Akademiia Nauk SSSR, Izvestiia, Seriia Fizicheskaia

Physics

2

Solar Magnetic Field, Solar Velocity, Sunspot Cycle, Angular Velocity, Boussinesq Approximation, Convection, Gradients, Minima, Solar Activity, Solar Longitude, Spherical Shells, Thin Walled Shells

Scientific paper

It is suggested that anomalously large latitudinal angular-velocity gradients on the sun were responsible for the Maunder sunspot minimum, which covered the period from 1645 to 1715. The effect of differential rotation on convection structure is investigated by solving a problem of convection in a thin spherical envelope in the Boussinesq approximation with allowance for rotation and the latitudinal dependence of angular velocity. The results indicate that a self-oscillating convective process characterized by interchanging latitudinal and longitudinal convection cells may occur on the sun and that the dynamo mechanism of magnetic-field generation would cease to operate when latitudinal convection cells exist.

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