http://arxiv.org/abs/1412.4853
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.
E. Lee, V. Archontis and A. Hood
Wed, 17 Dec 14
48/67
Comments: 6 pages, 5 figures, Accepted for publication in the Astrophysical Journal Letters
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