Relationship between the north–south asymmetry of sunspot formation and the amplitude of 11-year solar activity cycles

Relationship between the north–south asymmetry of sunspot formation and the amplitude of 11-year solar activity cycles

A relationship between the north–south asymmetry of sunspot formation and the amplitude of 11-year cycles has been established from the RGO/USAF/NOAA data on sunspots. It is shown that the higher the solar cycle amplitude, the smaller the absolute value of the north–south asymmetry. The revealed pat...

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Veröffentlicht in:Astronomy letters 2016-07, Vol.42 (7), p.488-494
Hauptverfasser: Latyshev, S. V., Olemskoy, S. V.
Format: Artikel
Sprache:eng
Schlagworte:
Amplitudes
Astronomy
Astrophysics and Astroparticles
Asymmetry
Dynamo theory
Formations
Observations and Techniques
Physics
Physics and Astronomy
Solar activity
Solar cycle
Solar cycles
Sunspots
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Zusammenfassung:A relationship between the north–south asymmetry of sunspot formation and the amplitude of 11-year cycles has been established from the RGO/USAF/NOAA data on sunspots. It is shown that the higher the solar cycle amplitude, the smaller the absolute value of the north–south asymmetry. The revealed pattern has been investigated in a numerical dynamo model with irregular variations of the alpha-effect.
ISSN:1063-7737
1562-6873
DOI:10.1134/S1063773716060025