Results 31 to 40 of about 22,416 (198)
Non-linear dynamo waves in an incompressible medium when the turbulence dissipative coefficients depend on temperature [PDF]
Annales Geophysicae, 1997 Non-linear α-ω; dynamo waves existing in an incompressible medium with the turbulence dissipative coefficients depending on temperature are studied in this paper.
A. D. Pataraya, T. A. Pataraya
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International Astronomical Union Colloquium, 1990 AbstractThe phenomena of solar activity are connected with a general magnetic field of-the Sun which is due to a dynamo process essentially determined by the α-effect and the differential rotation in the convection zone. A few observational facts are summarized which are important for modelling this process.
openaire +1 more source
Helicity conservation in nonlinear mean-field solar dynamo
, 2012 We explore the impact of magnetic helicity conservation on the mean-field solar dynamo using the axisymmetric dynamo model which includes the subsurface shear.
Kuzanyan, K. M. +3 more
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Magneto-Rossby Waves and Seismology of Solar Interior
Frontiers in Astronomy and Space Sciences, 2018 Eleven-year Schwabe cycle in solar activity is not yet fully understood despite of its almost two century discovery. It is generally interpreted as owing to some sort of magnetic dynamo operating below or inside the convection zone.
Teimuraz V. Zaqarashvili +3 more
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Large-scale solar cycle features of solar photospheric magnetic field [PDF]
, 2007 It is well accepted that the solar cycle originates from a magnetohydrodynamics dynamo deep inside the Sun. Many dynamo models have long been proposed based on a lot of observational constraints.
Babcock +11 more
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Understanding the solar dynamo [PDF]
Astronomy and Geophysics, 2004 olar magnetic activity is observed on a wide range of scales, from the intriguingly regular and well-ordered large-scale field, to much more complex small-scale structures. In this article we shall primarily be concerned with the large-scale features, and the associated large-scale dynamo that is responsible for their occurrence.
Bushby P, Mason J
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The effect of a meridional flow on Parker's interface dynamo
, 2004 Parker's interface dynamo is generalized to the case when a homogeneous flow is present in the high-diffusivity (upper) layer in the lateral direction (i.e. perpendicular to the shear flow in the lower layer).
A. Kerekes +19 more
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, 2009 The solar activity cycle is a manifestation of the hydromagnetic dynamo working inside our star. The detection of activity cycles in solar-like stars and the study of their properties allow us to put the solar dynamo in perspective, investigating how ...
A. F. Lanza +38 more
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Astronomy & Astrophysics, 2007 Context: Observations indicate that the `quiet' solar photosphere outside active regions contains considerable amounts of magnetic energy and magnetic flux, with mixed polarity on small scales. The origin of this flux is unclear. Aims: We test whether local dynamo action of the near-surface convection (granulation) can generate a significant ...
Vögler, A., Schüssler, M.
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Magnetic Helicity Evolution During the Solar Activity Cycle: Observations and Dynamo Theory
, 2003 We study a simple model for the solar dynamo in the framework of the Parker migratory dynamo, with a nonlinear dynamo saturation mechanism based on magnetic helicity conservation arguments.
Abramenko +55 more
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