28 citations · 102 across the 6 of their papers we have counts for
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astro-ph.SR2013★ 2 cited
Statistical distribution of current helicity in solar active regions over the magnetic cycle
Y. Gao, T. Sakurai, H. Zhang +2
The current helicity in solar active regions derived from vector magnetograph observations for more than 20 years indicates the so-called hemispheric sign rule; the helicity is pre…
astro-ph.SR2013★ 23 cited
The origin of the helicity hemispheric sign rule reversals in the mean-field solar-type dynamo
V. V. Pipin, H. Zhang, D. D. Sokoloff +2
Observations of proxies of the magnetic helicity in the Sun over the past two solar cycles revealed reversals of the helicity hemispheric sign rule (negative in the North and posit…