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arXiv · 1412.4853

Helical Blowout Jets in the Sun: Untwisting and Propagation of Waves

E. J. Lee·V. Archontis·A. W. Hood
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Abstract

We report on numerical experiment of the recurrent onset of helical "blowout" jets in an emerging flux region (EFR). We find that these jets are running with velocities of $\sim 100-250\,\mathrm{kms^{-1}}$ and they transfer a vast amount of heavy plasma into the outer solar atmosphere. During their emission, they undergo an untwisting motion as a result of reconnection between the twisted emerging and the non-twisted pre-existing magnetic field in the solar atmosphere. For the first time in the context of blowout jets, we provide a direct evidence that their untwisting motion is associated with the propagation of torsional Alfv\'en waves in the corona.

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E. J. Lee, V. Archontis, A. W. Hood. 2014-12-16. Helical Blowout Jets in the Sun: Untwisting and Propagation of Waves. https://doi.org/10.1088/2041-8205/798/1/l10

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