Results 21 to 30 of about 972,333 (200)
Development and application of a global magnetic field evolution model for the solar corona [PDF]
, 2009 Magnetic fields are fundamental to the structure and dynamics of the Sun’s corona. Observations show them to be locally complex, with highly sheared and twisted fields visible in solar filaments/prominences.
Yeates, Anthony Robinson
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Effects of Emerging Bipolar Magnetic Regions in Mean-field Dynamo Model of Solar Cycles 23 and 24
The Astrophysical Journal, 2023 We model the physical parameters of Solar Cycles 23 and 24 using a nonlinear dynamical mean-field dynamo model that includes the formation and evolution of bipolar magnetic regions (BMRs). The Parker-type dynamo model consists of a complete MHD system in
V. V. Pipin +2 more
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Filaments and the Solar Dynamo [PDF]
International Astronomical Union Colloquium, 1998 AbstractFilaments are a global phenomenon and their formation, structure and dynamics are determined by magnetic fields. So they are an important signature of the solar magnetism. The central mechanism in traditional mean-field dynamo theory is the alpha effect and it is a major result of this theory that the presence of kinetic or magnetic helicities ...
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The Solar Dynamo and Planetary Dynamo [PDF]
Symposium - 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.
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Space 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.
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Differential Rotation for Different-sized Sunspot Groups Early Observed by the OGAUC
The 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
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On energetics and inertial-range scaling laws of two-dimensional magnetohydrodynamic turbulence [PDF]
, 2012 L. Blackbourn was supported by an EPSRC post-graduate studentship.We study two-dimensional magnetohydrodynamic turbulence, with an emphasis on its energetics and inertial range scaling laws.
Tran, Chuong Van +1 more
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Global bifurcations to subcritical magnetorotational dynamo action in Keplerian shear flow [PDF]
, 2013 Magnetorotational dynamo action in Keplerian shear flow is a three-dimensional, non-linear magnetohydrodynamic process whose study is relevant to the understanding of accretion processes and magnetic field generation in astrophysics.
Cossu, Carlo +12 more
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Cio-cio-san no Yūutsu: memoirs of magnetogenesis and Turbulent Dynamo Theory [PDF]
, 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
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The origin and dynamic interaction of solar magnetic fields [PDF]
, 2007 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.
Antonia Wilmot-Smith +2 more
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