Helical blowout jets in the sun : untwisting and propagation of waves
MetadataShow full item record
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 ∼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 Alfvén waves in the corona.
Lee , E J , Archontis , V & Hood , A W 2015 , ' Helical blowout jets in the sun : untwisting and propagation of waves ' Astrophysical Journal Letters , vol. 798 , no. 1 . DOI: 10.1088/2041-8205/798/1/L10
Astrophysical Journal Letters
© 2015. The American Astronomical Society. All rights reserved. Reproduced in accordance with the AAS copyright policy.
Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.