NDLI: Plasma drift in the solar corona

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Plasma drift in the solar corona

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Plasma drift in the solar corona

Content Provider	Springer Nature Link
Author	Molodensky, M. M. Merzlyakov, V. L.
Copyright Year	2002
Abstract	Model calculations of plasma drifts in the solar corona were performed. We established that only drifts in crossed fields could result in velocities V of several hundred kilometers per second. Such velocities are typical of coronal mass ejections (CMEs). We derived an analytic expression for V where n, the expansion harmonic of the magnetic-field strength, varies with time. As follows from this expression, V is a power function of the distance with index (2−n) and the radial component changes sign (n−1) times in the latitude range from −π/2 to +π/2. We found that if the magnetic dipole moment varies with time, the similarity between the spiral structures of coronal plasma is preserved when they displace within several solar radii and the density gradient at the conical boundaries increases (the apparent contrast is enhanced). There is a correspondence between the inferred model effects and the actually observed phenomena that accompany CMEs.
Starting Page	272
Ending Page	278
Page Count	7
File Format	PDF
ISSN	10637737
Journal	Astronomy Letters
Volume Number	28
Issue Number	4
e-ISSN	15626873
Language	English
Publisher	Nauka/Interperiodica
Publisher Date	2002-01-01
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Sun corona magnetic field drift Astronomy Astrophysics
Content Type	Text
Resource Type	Article
Subject	Astronomy and Astrophysics Space and Planetary Science

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Modelling the Global Solar Corona: Filament Chirality Observations and Surface Simulations

The Magnetic Field of the Solar Corona from Pulsar Observations

The heating of the solar corona

Calculating the potential magnetic field of a local region on the Sun using the measured oblique component

Coronal structures as tracers of sub-surface processes

Heating the solar corona by plasma loops

CORONAL RADIATION BELTS

The Strength and Structure of the Coronal Magnetic Field

Magnetic Field in the Gravitationally Stratified Coronal Loops

Plasma drift in the solar corona

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Modelling the Global Solar Corona: Filament Chirality Observations and Surface Simulations

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The heating of the solar corona

Calculating the potential magnetic field of a local region on the Sun using the measured oblique component

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