Modeling the Sun's polar fields and open flux during the Maunder Minimum

Details Modeling the Sun's polar fields and open flux during the Maunder Minimum Modeling the Sun's polar fields and open flux during the Maunder Minimum

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003eaeja.....2424w&link_type=abstract

EGS - AGU - EUG Joint Assembly, Abstracts from the meeting held in Nice, France, 6 - 11 April 2003, abstract #2424

Computer Science

Scientific paper

We use a flux transport model to simulate the evolution of the Sun's polar fields and open magnetic flux under Maunder Minimum conditions. Even when the rate of active region emergence is taken to be a factor of 50--100 smaller than in recent cycles, we find that 11 yr polarity oscillations of the polar fields can be maintained if the speed of the poleward surface flow is reduced from 20 m/s to 10 m/s and the magnetic flux is assumed to emerge at low latitudes. The strength of the radial IMF component is inferred to be in the range ˜0.2--0.6 nT, about a factor of 10 weaker than at present but with a stronger solar-cycle modulation. We discuss the relationship between our simulation results and what is known observationally about the Maunder Minimum.

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