The hemispheric asynchrony of polar faculae during solar cycles 19–22 |
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Authors: | LH Deng ZQ Qu T Liu WJ Huang |
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Institution: | 1. National Astronomical Observatories/Yunnan Astronomical Observatory, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, PR China;2. Graduate School of the Chinese Academy of Sciences, ShijingShan Block, 100049 Beijing, PR China;3. Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, 430074 Wuhan, PR China;4. Oxbridge College, Kunming University of Science and Technology, 650106 Kunming, PR China |
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Abstract: | We investigate the north–south (N–S) asynchrony of the polar faculae and compare it with the hemispheric asynchrony of solar activity at low latitudes. We find that, (1) both the solar activity at high and low latitudes do not synchronously occur in the northern and southern hemispheres, there is phase shifts between the two hemispheres; (2) the N–S asynchrony of the polar faculae is a function of latitudes, implying that the asynchrony of the polar faculae between the two hemispheres is related to the hemispheric asymmetry and latitudinal distribution of the polar faculae. |
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Keywords: | Sun: faculae Magnetic fields Methods: data analysis |
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