Results 1 to 10 of about 1,279,100 (210)
Solar force-free magnetic fields [PDF]
Living Reviews in Solar Physics, 2021 The structure and dynamics of the solar corona is dominated by the magnetic field. In most areas in the corona magnetic forces are so dominant that all non-magnetic forces such as plasma pressure gradients and gravity can be neglected in the lowest order.
T. Wiegelmann, T. Sakurai
semanticscholar +9 more sources
Mapping solar magnetic fields from the photosphere to the base of the corona. [PDF]
Sci Adv, 2021 A novel space experiment achieves an unprecedented map of solar magnetic fields from the photosphere to the base of the corona. Routine ultraviolet imaging of the Sun’s upper atmosphere shows the spectacular manifestation of solar activity; yet, we ...
Ishikawa R +27 more
europepmc +3 more sources
A Statistical Study on Force-Freeness of Solar Magnetic Fields in the Photosphere [PDF]
Publications Astronomical Society of Australia, 2012 It is an indisputable fact that solar magnetic fields are force-free in the corona, where force-free fields mean that current and magnetic fields are parallel and there is no Lorentz force in the fields.
S. Liu +6 more
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Small-Scale Solar Magnetic Fields [PDF]
Space Science Reviews, 2008 43 pages, 18 ...
de Wijn, A. +3 more
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TANGLED MAGNETIC FIELDS IN SOLAR PROMINENCES [PDF]
The Astrophysical Journal, 2010 Solar prominences are an important tool for studying the structure and evolution of the coronal magnetic field. Here we consider so-called "hedgerow" prominences, which consist of thin vertical threads. We explore the possibility that such prominences are supported by tangled magnetic fields. A variety of different approaches are used.
van Ballegooijen, A. A., Cranmer, S. R.
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Eruptive solar magnetic fields
The Astrophysical Journal, 1981 This paper considers the quasi-steady evolution of solar magnetic fields in response to gradual photospheric changes. Special interest is taken in the threshold of a sudden eruption in the solar atmosphere. The formal model of an evolving, force-free field dependent on two Cartesian coordinates has been treated previously, and we extend it to a field ...
B. Low
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, 2018 Since the structuring and variability of the Sun and other stars are governed by magnetic fields, much of present-day stellar physics centers around the measurement and understanding of the magnetic fields and their interactions.
Stenflo, J.
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SOLAR MAGNETIC FIELDS - EXTENDED
Publications of the Astronomical Society of the Pacific, 1971 Spacecraft observations of the interplanetary magnetic field have revealed that almost always each solar rotation can be divided into sectors, within each of which the field has a predominant polarity toward the sun or away from the sun. Comparisons of this interplanetary magnetic sector pattern with observations of the photospheric magnetic field have
J. Wilcox
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Magnetic fields in the solar convection zone
Living Reviews in Solar Physics, 2021 It has been a prevailing picture that active regions on the solar surface originate from a strong toroidal magnetic field stored in the overshoot region at the base of the solar convection zone, generated by a deep seated solar dynamo mechanism.
Yuhong Fan
semanticscholar +1 more source
Physics of the Earth and Planetary Interiors, 2011 This review provides an introduction to the generation and evolution of the Sun's magnetic field, summarising both observational evidence and theoretical models. The eleven year solar cycle, which is well known from a variety of observed quantities, strongly supports the idea of a large-scale solar dynamo.
Hood, Alan W., Hughes, David W.
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