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The Magnetic Field of Solar Spicules

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arxiv 0903.0002 v1 pith:J6HXTQDC submitted 2009-02-27 astro-ph.SR

The Magnetic Field of Solar Spicules

classification astro-ph.SR
keywords magneticfieldsolarspiculesobservationsveryactionadequate
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Determining the magnetic field of solar spicules is vital for developing adequate models of these plasma jets, which are thought to play a key role in the thermal, dynamic, and magnetic structure of the chromosphere. Here we report on magnetic spicule properties in a very quiet region of the off-limb solar atmosphere, as inferred from new spectropolarimetric observations in the HeI 10830 A triplet. We have used a novel inversion code for Stokes profiles caused by the joint action of atomic level polarization and the Hanle and Zeeman effects (HAZEL) to interpret the observations. Magnetic fields as strong as 40G were unambiguously detected in a very localized area of the slit, which may represent a possible lower value of the field strength of organized network spicules.

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