Solar cycle 23: An unusual solar minimum?

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13 Scopus citations

Abstract

We are currently observing the minimum phase of Cycle 23. Magnetic activity during the years 2006-2009 has been very weak with sunspot numbers reaching the lowest values in about 100 years. This long and extended minimum is characterized by weak polar magnetic fields, small polar coronal holes, and a relatively complex coronal morphology. This magnetic configuration at the Sun is remarkably different from the one observed during the previous two solar minima. We review observations made at the Sun and in the solar wind during the recent solar minima and discuss the implications of the observed differences for the heliosphere and geospace.

Original languageEnglish
Title of host publicationTwelfth International Solar Wind Conference
Pages667-670
Number of pages4
DOIs
StatePublished - 2010
Event12th International Solar Wind Conference - Saint-Malo, France
Duration: Jun 21 2009Jun 26 2009

Publication series

NameAIP Conference Proceedings
Volume1216
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference12th International Solar Wind Conference
Country/TerritoryFrance
CitySaint-Malo
Period06/21/0906/26/09

Keywords

  • Corona
  • Solar magnetism
  • Solar wind

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