A new Connection Between the Sun's Long-Term Activity and its North-South Asymmetry

Details A new Connection Between the Sun's Long-Term Activity and its North-South Asymmetry A new Connection Between the Sun's Long-Term Activity and its North-South Asymmetry

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..sh52a04m&link_type=abstract

American Geophysical Union, Spring Meeting 2001, abstract #SH52A-04

Physics

1650 Solar Variability, 2162 Solar Cycle Variations (7536), 2164 Solar Wind Plasma, 7536 Solar Activity Cycle (2162), 7537 Solar And Stellar Variability

Scientific paper

Solar activity is known to vary with a roughly centennial scale (the so called Gleissberg cycle) with the two latest minima occurring at the turns of the 18th/19th and 19th/20th centuries. We have recently shown a new pattern in the Sun's long-term north-south asymmetry measured by solar wind speed and geomangetic activity. We find that this north-south asymmetry was large when solar activity was large in mid-19th century and during the more recent, active solar cycles since 1930's. This suggests a correlation between the Sun's long-term magnetic activity and its asymmetry. We discuss this connection and models explaining it. We note that this connection may offer a possibility to explain the recent rise in solar activity.

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