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Flares and Velocity Fields in AR 5528, AR 5629 and AR 6891

Published online by Cambridge University Press:  12 April 2016

Jimin Chen
Affiliation:
Beijing Astronomical Observatory, Chinese Academy of Sciences, Beijing 100080, China
Yinliang Huang
Affiliation:
Tianjin Institute of Technology, Tianjin 300191, China
Zhenxing Liu
Affiliation:
Institute of Space Physics, Chinese Academy of Sciences, Beijing 100080, China

Extract

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In regards to the spatial associations of flares to velocity fields, Martres and Soru-Escaut (1977) found that flares occurred in the vicinity of the site where the magnetic neutral lines B=0 and the velocity neutral lines V=0 lines were crossing in the photosphere; Harvey and Harvey (1976) revealed that flares were related to velocity patterns different from Evershed flows. Recently Ai et al. (1991) discovered that flares occurred on the red-shift side of the velocity inversion lines (V=0) of the Hβ Dopplergrams observed half to two hours before flares. In this paper we further examined the associations with high resolution data obtained by Solar Magnetic Field Telescope at Huairou. A reconnection model applied to the magnetosphere is adopted here to tentatively interpret some of the observational results.

Type
Session 1. Structure of Active Regions
Copyright
Copyright © Astronomical Society of the Pacific 1993

References

Martres, M. J., Soru-Escaut, I., 1977, Solar Phys., 53, 225 Google Scholar
Harvey, K. L., Harvey, J. W., 1976, Solar Phys., 47, 233 Google Scholar
Ai, Guoxiang, et al., 1991, Chinese Science Bulletin, 36, 1275 Google Scholar
Liu, Z. X. and Hu., Y. D., 1988, Geophys. Res. Lett., 15, 752 CrossRefGoogle Scholar