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| Paper: |
Magnetic Helicity Injection and Sigmoidal Coronal Loops |
| Volume: |
325, The Solar-B Mission and the Forefront of Solar Physics |
| Page: |
145 |
| Authors: |
Yamamoto, T.T.; Sakurai, T.; Kusano, K.; Maeshiro, T.; Yokoyama, T. |
| Abstract: |
We analyzed the magnetic helicity injection in NOAA Active Region 8011 with the method proposed by Kusano et al. (2002). It was found that the helical geometry of a sigmoidal loop in this region is consistent with the magnetic helicity injected from the foot points of the loop. We also made a statistical study of the correlation between X-ray intensity and magnetic helicity injection. We found that the sum of the absolute values of the magnetic helicity injection shows good correlation with the X-ray luminosity. The estimated flux of magnetic free energy injection is not highly correlated with the X-ray flux, because the former quantity is overestimated in our simple method. |
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