Modeling a Shallow Solar Dynamo

作者: Kenneth H. Schatten

DOI: 10.1007/S11207-008-9308-3

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摘要: Photospheric ephemeral regions (EPRs) cover the Sun like a magnetic carpet. From this, we update Babcock – Leighton solar dynamo. Rather than sunspot fields appearing in photosphere de novo from eruptions originating deep interior, consider that sunspots form directly by rapid accumulation of like-sign field EPRs. This would only occur during special circumstances: locations and times when temperature structure is highly superadiabatic contains large subsurface horizontal (only present Sun’s lower latitudes). When these conditions are met, percolation occurs, wherein an inflow downflow gas scours surface EPRs to active regions. not elements undergo normal percolation, move about Brownian-type motions. Cellular automata (CA) models developed allow processes be calculated thereby both small-scale large-scale motions can obtained. The model compared with region development Hinode observations. CA offers dynamo, which suggests decaying bipolar (BMRs) drift on driven forces. These related observations shown support Waldmeier’s findings inverse relationship between cycle length size. Evidence for significant amounts activity could disprove presented here, but recent helioseismic “butterfly patterns” at depth likely just reflection activity. Their existence seems contention made here flow separate, allowing cool, relatively field-free downdrafts descend little into nether worlds interior. There they heat compression hot solar-type Santa Ana wind below

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