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Successive Two-sided loop Jets Caused by Magnetic Reconnection between Two adjacent Filamentary Threads View all abstracts by submitter

Yuandeng Shen   Submitted: 2017-07-16 18:18

We present observational analysis of two successive two-sided loop jets observed by the ground-based New Vacuum Solar Telescope (NVST) and the space-borne Solar Dynamics Observatory ( SDO). The two successive two-sided loop jets manifested similar evolution process and both were associated with the interaction of two small-scale adjacent filamentary threads, magnetic emerging and cancellation processes at the jet's source region. High temporal and high spatial resolution observations reveal that the two adjacent ends of the two filamentary threads are rooted in opposite magnetic polarities within the source region. The two threads approached to each other, and then an obvious brightening patch is observed at the interaction position. Subsequently, a pair of hot plasma ejections are observed heading to opposite directions along the paths of the two filamentary threads, and with a typical speed of two-sided loop jets of the order 150 km s-1. Close to the end of the second jet, we report the formation of a bright hot loop structure at the source region, which suggests the formation of new loops during the interaction. Based on the observational results, we propose that the observed two-sided loop jets are caused by the magnetic reconnection between the two adjacent filamentary threads, largely different from the previous scenario that a two-sided loop jet is generated by magnetic reconnection between an emerging bipole and the overlying horizontal magnetic fields.

Authors: Zhanjun Tian, Yu Liu, Yuandeng Shen, Abouazza Elmhamdi, Jiangtao Su, Ying D. Liu, and Ayman. S. Kordi
Projects: SDO-AIA

Publication Status: accepted by APJ
Last Modified: 2017-07-17 10:17
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