
TL;DR
This paper reports the observation of a coronal jet originating from a sunspot light bridge, suggesting magnetic reconnection or plasma escape as underlying mechanisms, based on data from SDO and Hinode satellites.
Contribution
It presents the first detailed observation of a coronal jet from a sunspot light bridge and links it to magnetic reconnection processes.
Findings
Jet originates near light bridge
Light bridge intensity and width change during jet
Jet likely caused by magnetic reconnection or plasma escape
Abstract
Chromospheric brighten and H surge are the evident and common phenomena along sunspot light bridge. In this paper, a coronal jet ejects from sunspot light bridge is presented. Using the data from the Solar Dynamics Observatory (SDO) and Hinode satellites, it is confirmed that the jet has the root near light bridge, this suggests that the jet may be a result of reconnection between main sunspot and light bridge. Due to the processing of jet ejects, the intensity and width of light bridge have some changes at some extent. This also suggests that jet is related to the interaction between light bridge and umbra, possibly magnetic reconnection or heat plasma trapped in light bridge escaping and moving along field line.
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