A Virial Theorem Investigation of Magnetic Variations in the Sun

Details A Virial Theorem Investigation of Magnetic Variations in the Sun A Virial Theorem Investigation of Magnetic Variations in the Sun

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006apj...653l..73s&link_type=abstract

The Astrophysical Journal, Volume 653, Issue 1, pp. L73-L75.

Astronomy and Astrophysics

Astronomy

9

Magnetic Fields, Sun: Interior

Scientific paper

The magnetic virial theorem is applied here to a long-standing astrophysical problem, namely, the sign of the Sun's radius change during the solar activity cycle. The solar radius is theoretically found to decrease around the time of maximum magnetic field strength, in agreement with the best available observational evidence. This theoretical prediction, although simply based, instills some confidence by explicitly satisfying the conservation of total energy.

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