Recurrent Two-Sided Loop Jets Caused by Magnetic Reconnection between Erupting Minifilaments and Nearby Large Filament. (arXiv:1911.02251v1 [astro-ph.SR])

Recurrent Two-Sided Loop Jets Caused by Magnetic Reconnection between Erupting Minifilaments and Nearby Large Filament. (arXiv:1911.02251v1 [astro-ph.SR])
<a href="http://arxiv.org/find/astro-ph/1/au:+Yang_B/0/1/0/all/0/1">Bo Yang</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Yang_J/0/1/0/all/0/1">Jiayan Yang</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bi_Y/0/1/0/all/0/1">Yi Bi</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Xu_Z/0/1/0/all/0/1">Zhe Xu</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hong_J/0/1/0/all/0/1">Junchao Hong</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Li_H/0/1/0/all/0/1">Haidong Li</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Chen_H/0/1/0/all/0/1">Hechao Chen</a>

Using high spatial and temporal data from the New Vacuum Solar Telescope
(NVST) and the Solar Dynamics Observatory (SDO), we present unambiguous
observations of recurrent two-sided loop jets caused by magnetic reconnection
between erupting minifilaments and nearby large filament. The observations
demonstrate that three two-sided loop jets, which ejected along the large
filament in opposite directions, had similar appearance and originated from the
same region. We find that a minifilament erupted and drove the first jet. It
reformed at the same neutral line later, and then underwent partial and total
eruptions, drove the second and third jets, respectively. In the course of the
jets, cool plasma was injected into the large filament. Furthermore, persistent
magnetic flux cancelation occurred at the neutral line under the minifilament
before its eruption and continued until the end of the observation. We infer
that magnetic flux cancellation may account for building and then triggering
the minifilament to erupt to produce the two-sided loop jets. This observation
not only indicates that two-sided loop jets can be driven by minifilament
eruptions, but also sheds new light on our understanding of the recurrent
mechanism of two-sided loop jets.

Using high spatial and temporal data from the New Vacuum Solar Telescope
(NVST) and the Solar Dynamics Observatory (SDO), we present unambiguous
observations of recurrent two-sided loop jets caused by magnetic reconnection
between erupting minifilaments and nearby large filament. The observations
demonstrate that three two-sided loop jets, which ejected along the large
filament in opposite directions, had similar appearance and originated from the
same region. We find that a minifilament erupted and drove the first jet. It
reformed at the same neutral line later, and then underwent partial and total
eruptions, drove the second and third jets, respectively. In the course of the
jets, cool plasma was injected into the large filament. Furthermore, persistent
magnetic flux cancelation occurred at the neutral line under the minifilament
before its eruption and continued until the end of the observation. We infer
that magnetic flux cancellation may account for building and then triggering
the minifilament to erupt to produce the two-sided loop jets. This observation
not only indicates that two-sided loop jets can be driven by minifilament
eruptions, but also sheds new light on our understanding of the recurrent
mechanism of two-sided loop jets.

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