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The cause of the appearance or disappearance of the Rieger-type periodicity in the northern and southern hemispheres of the sun

Xiang, NB; Zhao, XH; Li, FY

Xiang, NB (corresponding author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Yunnan, Peoples R China.; Xiang, NB (corresponding author), Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Peoples R China.; Xiang, NB (corresponding author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing 100190, Peoples R China.

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA, 2021; 38 ():

Abstract

We use a continuous wavelet transform to analyse the daily hemispheric sunspot area data from the Greenwich Royal Observatory during cycles 12-24 and ......

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