Results 21 to 30 of about 1,023,827 (208)

External Forcing of the Solar Dynamo

open access: yesFrontiers in Astronomy and Space Sciences, 2022
In this paper I examine whether external forcing of the solar dynamo on long timescales can produce detectable signal in the form of long term modulation of the magnetic cycle.
Paul Charbonneau
doaj   +1 more source

The Solar Dynamo and Planetary Dynamo [PDF]

open access: yesSymposium - International Astronomical Union, 1993
A dynamo driven by flows of differential rotation and global convection in a rotating sphere is reviewed as a model of the solar and planetary dynamos. The flows can amplify a magnetic field from an infinitesimal level and thus can generate a magnetic field.
openaire   +1 more source

Rotational dependence of turbulent transport coefficients in global convective dynamo simulations of solar-like stars [PDF]

open access: yes, 2020
| openaire: EC/H2020/818665/EU//UniSDynContext. For moderate and slow rotation, the magnetic activity of solar-like stars is observed to strongly depend on rotation, while for rapid rotation, only a very weak or no dependency is detected.
M. J. Käpylä   +4 more
core   +1 more source

Some Recent Developments in Solar Dynamo Theory [PDF]

open access: yes, 2006
We discuss the current status of solar dynamo theory and describe the dynamo model developed by our group. The toroidal magnetic field is generated in the tachocline by the strong differential rotation and rises to the solar surface due to magnetic ...
Choudhuri, Arnab Rai
core   +2 more sources

Differential Rotation for Different-sized Sunspot Groups Early Observed by the OGAUC

open access: yesThe Astrophysical Journal, 2023
Solar differential rotation is an important ingredient of the solar dynamo model, not only because the solar rotation profile is one of the key inputs in a solar dynamo model, but also because it imposes constraints for the solar dynamo model.
Miao Wan   +3 more
doaj   +1 more source

Cio-cio-san no Yūutsu: memoirs of magnetogenesis and Turbulent Dynamo Theory [PDF]

open access: yes, 2013
The origins of cosmic magnetic fields are not as yet well understood. In this dissertation we investigate, via direct numerical simulation, the temporal evolution and behaviour of magnetic fields that are generated from absolute zero initial conditions ...
Adams, Patrick
core   +1 more source

The origin and dynamic interaction of solar magnetic fields [PDF]

open access: yes, 2008
The dynamics of the solar corona are dominated by the magnetic field which creates its structure. The magnetic field in most of the corona is ‘frozen’ to the plasma very effectively.
Wilmot-Smith, A.L.
core   +2 more sources

An Insight into the Solar Dynamo Theory [PDF]

open access: yes, 2017
The Sun manifests its magnetic field in form of the solar activities, being observed on the surface of the Sun. The dynamo action is responsible for the evolution of the magnetic field in the Sun.
Kumar, Mukul, Tiwari, Babu Ram
core   +3 more sources

Duskside F-region dynamo currents: its relationship with prereversal enhancement of vertical plasma drift [PDF]

open access: yesAnnales Geophysicae, 2010
From magnetic field observations by CHAMP we estimate F-region dynamo current densities near the sunset terminator during solar maximum years from 2001 to 2002.
J. Park   +4 more
doaj   +1 more source

The Solar Dynamo

open access: yesSpace Science Reviews, 2008
We shortly review the basic observational facts concerning the solar dynamo. Then, a brief overview of our current understanding of the large-scale evolution of the magnetic field of the Sun is proposed, showing, in particular, some successes and difficulties of the mean-field models.
Thompson, M.J., Weiss, N.O.
openaire   +3 more sources

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