Modeling the Sun's Large-Scale Magnetic Field during the Maunder Minimum

@article{Wang2003ModelingTS,
  title={Modeling the Sun's Large-Scale Magnetic Field during the Maunder Minimum},
  author={Y.-M. Wang and N. Sheeley},
  journal={The Astrophysical Journal},
  year={2003},
  volume={591},
  pages={1248-1256}
}
We use a flux transport model to simulate the evolution of the Sun’s magnetic dipole moment, polar fields, and open flux under Maunder minimum conditions. Even when the rate of active region emergence is taken to be a factor of � 30 smaller than in recent solar cycles, regular polarity oscillations of the axial dipole and polar fields can be maintained if the speed of the poleward surface flow is reduced from � 20 to � 10 m s � 1 and the source flux emerges at very low latitudes (� 10 � ). The… Expand

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5
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References

SHOWING 1-10 OF 28 REFERENCES
Meridional Flow and the Solar Cycle Variation of the Sun’s Open Magnetic Flux
We simulate the evolution of the Sun's large-scale magnetic field during solar cycle 21, including the effect of surface transport processes and active region emergence. As an important newExpand
On the Fluctuating Component of the Sun’s Large-Scale Magnetic Field
The Sun's large-scale magnetic field and its proxies are known to undergo substantial variations on timescales much less than a solar cycle but longer than a rotation period. Examples of suchExpand
ROLE OF A VARIABLE MERIDIONAL FLOW IN THE SECULAR EVOLUTION OF THE SUN'S POLAR FIELDS AND OPEN FLUX
We use a magnetic flux transport model to simulate the evolution of the Sun's polar fields and open flux during solar cycles 13 through 22 (1888-1997). The flux emergence rates are assumed to scaleExpand
Understanding the evolution of the Sun's open magnetic flux
The large-scale magnetic field of the Sun, including the open flux that extends into the interplanetary medium, originates in active regions but is redistributed over the photosphere by differentialExpand
A doubling of the Sun's coronal magnetic field during the past 100 years
The solar wind is an extended ionized gas of very high electrical conductivity, and therefore drags some magnetic flux out of the Sun to fill the heliosphere with a weak interplanetary magneticExpand
Simulations of the mean solar magnetic field during sunspot cycle 21
Regarding new bipolar magnetic regions as sources of flux, we have computed the evolution of the photospheric magnetic field during 1976–1984 and derived the corresponding evolution of the meanExpand
The Heliospheric Magnetic Field Over the South Polar Region of the Sun
TLDR
Magnetic field measurements from the Ulysses space mission showed that the structure and properties of the three-dimensional heliosphere were determined by the fast solar wind flow and magnetic fields from the large coronal holes in the polar regions of the sun. Expand
The long‐term variation of the Sun's open magnetic flux
The interplanetary magnetic field (IMF) has its origin in open magnetic regions of the Sun (coronal holes). The location of these regions and their total open flux Φ open can be inferred fromExpand
Geomagnetic activity and the solar wind during the Maunder Minimum
We used a strong (r = 0.96) correlation between 11-year averages of sunspot number (SSN) and the geomagnetic aa index to infer that the mean level of geomagnetic activity during the Maunder MinimumExpand
The solar wind during the Maunder minimum
Abstract It is presently believed that the high speed solar wind originates almost entirely in coronal holes. Theory suggests that the origin of the high speeds is extended energy deposition inExpand
...
1
2
3
...