Results 1 to 10 of about 30,768 (165)
The Magnetic Field Inside the Sun [PDF]
Symposium - International Astronomical Union, 1988 Duvall, Harvey and Pomerantz (1986) reported the existence of a ‘structural asymmetry’ inside the Sun. We show that this asymmetry is not a consequence of the Sun's rotation. We attribute the asymmetry, rather, to a toroidal magnetic field inside the Sun.
W. Dziembowski, Philip R. Goode
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The Sun's General Magnetic Field [PDF]
Nature, 1956 SOME of the recent theoretical discussions of the magnetic field of the Sun have tended to throw the subject into a state of confusion1–3. In particular, H. Alfven3 asserts that “… it is at present impossible to derive a value of the sun's general magnetic field from spectroscopic measurements”, and that “quite without justification it is assumed that ...
H. ALFVÉN, B. LEHNERT
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The toroidal magnetic field inside the Sun [PDF]
International Astronomical Union Colloquium, 1991 Analysis of the fine structure of the solar oscillations has enabled us to determine the internal rotation of the Sun and to estimate the magnitude of the large-scale magnetic field inside the Sun. According to the data of Duvall et al. (1984), the core of the Sun rotates about twice as fast as the solar surface. Recently Dziembowski et al. (1989) have
V.N. Krivodubskij +3 more
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The Sun's global magnetic field [PDF]
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2012 Our present-day understanding of solar and stellar magnetic fields is discussed from both an observational and theoretical viewpoint. To begin with, observations of the Sun's large-scale magnetic field are described, along with recent advances in measuring the spatial distribution of magnetic fields on other stars.
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THE EMERGENCE OF WEAKLY TWISTED MAGNETIC FIELDS IN THE SUN [PDF]
The Astrophysical Journal, 2013 We have studied the emergence of a weakly twisted magnetic flux tube from the upper convection zone into the solar atmosphere. It is found that the rising magnetized plasma does not undergo the classical, single Ω-shaped loop emergence, but it becomes unstable in two places, forming two magnetic lobes that are anchored in small-scale bipolar structures
Archontis, Vasilis +2 more
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Mapping the Hidden Magnetic Field of the Quiet Sun [PDF]
The Astrophysical Journal Letters, 2021 Abstract The Sun is the only star where we can resolve the intricate magnetism that all convective stars harbor. Yet, more than 99% of its visible surface along the solar cycle (the so-called quiet Sun) is filled with a tangled, unresolved magnetism.
J. C. Trelles Arjona +2 more
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The internal magnetic field of the Sun [PDF]
Monthly Notices of the Royal Astronomical Society, 1987 On essaie de placer des limites a la taille des composantes a echelle moyenne ou large du champ magnetique dans l'interieur radiatif du ...
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Turbulent magnetic fields in the Sun [PDF]
Astronomy and Geophysics, 2001 Nigel Weiss recounts his Presidential Address 2001, given to the RAS A&G Ordinary Meeting on 9 February 2001. Recent high-resolution observations, from the ground and from space, have revealed the fine structure of magnetic features at the surface of the Sun.
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Quiet Sun Magnetic Fields [PDF]
, 2022 Gegenstand dieser Doktorarbeit ist das Studium der Magnetischen Felder auf der "ruhigen Sonne". Diese Felder rhren von sehr kleinskaligen Bereichen auf der sonst "magnetfeldfreien" Sonnenoberfläche her und sind deshalb nur durch schwache Polarisationssignale gekennzeichnet.
Domínguez Cerdeña, Itahiza Francisco +4 more
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Correlations Between Brightness Fields and Magnetic Fields on the Sun [PDF]
Symposium - International Astronomical Union, 1968 In places on the solar surface where longitudinal magnetic fields are detectable using Leighton's photographic technique, spectroheliograms taken in the cores of many Fraunhofer lines show a bright photospheric network similar to, but with finer structure than, the familiar chromospheric network visible on Ca+ K232 spectroheliograms.
G. A. Chapman, N. R. Sheeley
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