A Coronal Jet Ejects from Sunspot Light Bridge

Details A Coronal Jet Ejects from Sunspot Light Bridge A Coronal Jet Ejects from Sunspot Light Bridge

2012-03-13

arxiv.org/abs/1203.2806v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

It has been accepted for publication in PASA

Scientific paper

Chromospheric brighten and H$\alpha$ 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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