Title: Magnetoseismological determination of magnetic field and plasma density height variation in a solar spicule
Authors: Verth, G ×
Goossens, Marcel #
Issue Date: May-2011
Publisher: I O P Publishing Ltd.
Series Title: The Astrophysical Journal. Letters vol:733 issue:1 pages:-
Article number: L15
Abstract: The variation of magnetic field strength and plasma density along a solar spicule is determined by the use of magnetoseismology. From Solar Optical Telescope observations of a kink wave propagating along a spicule, by estimating the spatial change in phase speed and velocity amplitude, a novel approach is demonstrated to determine the chromospheric height variation of both magnetic field and plasma density. Furthermore, the magnetoseismological estimate of the plasma density gradient is combined with electron density estimates from spectroscopy to determine the changing degree of ionization of hydrogen along a spicule.
ISSN: 2041-8205
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Plasma-astrophysics Section
× corresponding author
# (joint) last author

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