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Strong Transverse Photosphere Magnetic Fields and Twist in Light Bridge Dividing Delta Sunspot of Active Region 12673 View all abstracts by submitter

Haimin Wang   Submitted: 2018-01-11 15:22

Solar Active Region (AR) 12673 is the most flare productive AR in the solar cycle 24. It produced four X-class flares including the X9.3 flare on 06 September 2017 and the X8.2 limb event on 10 September. Sun and Norton (2017) reported that this region had an unusual high rate of flux emergence, while Huang et al. (2018) reported that the X9.3 flare had extremely strong white-light flare emissions. Yang at al. (2017) described the detailed morphological evolution of this AR. In this report, we focus on usual behaviors of the light bridge (LB) dividing the delta configuration of this AR, namely the strong magnetic fields (above 5500 G) in the LB and apparent photospheric twist as shown in observations with a 0.1 arcsec spatial resolution obtained by the 1.6m telescope at Big Bear Solar Observatory.

Authors: Wang, Haimin; Yurchyshyn, Vasyl; Liu, Chang; Ahn, Kwangsu; Toriumi, Shin and Cao, Wenda
Projects: BBSO/NST,Hinode/SOT

Publication Status: Published in RNAAS
Last Modified: 2018-01-14 00:01
Go to main E-Print page  IRIS Observations of Spicules and Structures Near the Solar Limb  Simultaneous observation of a flux rope eruption and magnetic reconnection during an X-class solar flare  Edit Entry  Download Preprint  Submitter's Homepage Delete Entry 

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