Journal
ASTROPHYSICAL JOURNAL LETTERS
Volume 798, Issue 1, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/2041-8205/798/1/L10
Keywords
magnetohydrodynamics (MHD); Sun: activity; Sun: interior; Sun: magnetic fields
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Funding
- Royal Society
- UKMHD cluster at the University of St Andrews
- STFC [ST/H001964/1, ST/K000950/1] Funding Source: UKRI
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We report on a numerical experiment of the recurrent onset of helical blowout jets in an emerging flux region. We find that these jets are running with velocities of similar to 100-250 km s(-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 direct evidence that their untwisting motion is associated with the propagation of torsional Alfven waves in the corona.
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