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2015
In this introductory chapter we first briefly describe some overall characteristics of the sun, and then take a closer look at the sun’s magnetic surfaces. We shall see that highly advanced space and ground-based observations show various magnetic elements, their clusters, and mass flows in great detail. The chapter is concluded with the description of
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In this introductory chapter we first briefly describe some overall characteristics of the sun, and then take a closer look at the sun’s magnetic surfaces. We shall see that highly advanced space and ground-based observations show various magnetic elements, their clusters, and mass flows in great detail. The chapter is concluded with the description of
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The magnetic field in the Sun's corona
Science, 2020Solar Physics The solar corona is the outermost layer of the Sun's atmosphere, consisting of hot, diffuse, and highly ionized plasma. The magnetic field in this region is expected to drive many of its physical properties but has been difficult to measure with observations. Yang et al.
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Magnetic field generation on the sun
Astronomical & Astrophysical Transactions, 2001Abstract We consider the contradiction between the minimum entropy production theorem and the conception of the solar differential rotation being maintained by viscous forces. This difficulty can be overcome if the condition that the highest possible part of the total energy entering the convection zone from below is transformed into the magnetic field
Y. V. Vandakurov, E. M. Sklyarova
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The Sun and Its Restless Magnetic Field
2004The permanently changing magnetic field of the Sun is the ultimate driver of the various effects refered to as space weather. This chapter gives an overview of the physics of the solar magnetic field and its variability. This includes a brief description of the structure of the Sun, and a discussion of the origin of the solar magnetic field.
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Mapping the Magnetic Fields of the Sun
Publications of the Astronomical Society of the Pacific, 1952New apparatus for observing magnetic fields on the surface of the sun has recently been put into use at the Hale Solar Laboratory in Pasadena. It utilizes the longitudinal Zeeman effect, wherein a spectral line is split by the field into two overlapping oppositely polarized components. The new equipment has three noteworthy features : (1) a large plane
Horace W. Babcock, H. D. Babcock
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Rotation and Magnetic Fields in the Sun
1987Stellar magnetic fields exert torques which, alter the distribution of angular momentum in a star. In the radiative interior of the Sun these torques tend to enforce uniform rotation and the existence of a rapidly rotating core would imply a poloidal field of less than 10–2 G.
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Local Magnetic Fields on the Sun
1972The strongest magnetic fields on the sun are those of sunspots. Although their magnetic fields have been studied for a long time much remains unknown about the magnetism of these principal sources. At sufficiently large distances from a spot the magnetic field can, apparently, be well approximated as that of a dipole submerged below the solar ...
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The Generation of Magnetic Fields in the Sun
1987In this paper results of a preliminary investigation into the existence of large scale magnetic fields in the Sun are given. Using a kinematic model with prescribed internal rotation and a standard solar model, the poloidal and toroidal components of the magnetic field are calculated. The basic decay time is of the order of the age of the Sun.
Peter A. Fox, Ira B. Bernstein
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AIP Conference Proceedings, 2003
The seemingly un‐magnetized part of the solar surface is not really un‐magnetized. It is occupied by magnetic structures producing low polarization which, therefore, escape detection in traditional measurements. Since most of the solar surface belongs to this category, the quiet Sun magnetic fields can easily carry most of the magnetic flux and energy ...
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The seemingly un‐magnetized part of the solar surface is not really un‐magnetized. It is occupied by magnetic structures producing low polarization which, therefore, escape detection in traditional measurements. Since most of the solar surface belongs to this category, the quiet Sun magnetic fields can easily carry most of the magnetic flux and energy ...
openaire +1 more source