Results 11 to 20 of about 1,036 (175)
Universal dynamo paradigm for solar activity, Higgs fields and disasters [PDF]
EPJ Web of Conferences, 2021 There is still a problem of a correct and accurate description of the dynamo and its uses in various fields of physics. To solve this problem, a special and universal representation of dynamo is proposed.
Shevtsov Boris
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The role of the bow shock in solar wind-magnetosphere coupling [PDF]
Annales Geophysicae, 2011 In this paper we examine the role of the bow shock in coupling solar wind energy to the magnetosphere using global magnetohydrodynamic simulations of the solar wind-magnetosphere interaction with southward IMF.
R. E. Lopez, V. G. Merkin, J. G. Lyon
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Nonlinearity, time delay, and Grand Maxima in supercritical Babcock-Leighton dynamos
Journal of Space Weather and Space Climate, 2023 The physical origin of centennial and millennial-scale variations in solar activity remains ill-understood. Although stochastic fluctuations of the solar dynamo are unavoidable in view of the turbulent nature of the solar convection zone, the ...
Thibeault Christian +2 more
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Theoretical study of the ionospheric dynamo region inside the South Atlantic Anomaly
Earth and Planetary Physics, 2023 The South Atlantic Anomaly (SAA) is a region where the geomagnetic field is significantly lower than that of the surrounding area. On the basis of the models of CHAOS-7.8, Mass Spectrometer Incoherent Scatter Model (NRLMSISE-00), and International ...
SiQi Yi +7 more
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Models for the long-term variations of solar activity
Living Reviews in Solar Physics, 2023 One obvious feature of the solar cycle is its variation from one cycle to another. In this article, we review the dynamo models for the long-term variations of the solar cycle.
Bidya Binay Karak
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Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2012 The origins of solar magnetism lie below the visible surface of the Sun, in the highly turbulent convection zone. Turbulent convection operates in conjunction with rotational shear, global circulations and intricate boundary layers to produce the rich diversity of magnetic activity we observe.
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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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External Forcing of the Solar Dynamo
Frontiers 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
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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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