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Latitudinal Structure of the Photospheric Magnetic Field through solar cycles

Published online by Cambridge University Press:  01 November 2006

Elena Gavryuseva
Elena Gavryuseva
Affiliation:
Istituto Nazionale di Astrofisica – Arcetri Astrophysical Observatory, Largo Enrico Fermi 5, I-50125 Florence, Italy email: [email protected]
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Abstract

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Latitudinal structure with four zones: two sub polar and two equatorial with 22-year period of polarity change is clearly demonstrated. The auto-correlation of the magnetic field has been calculated for all latitudes from 75 N to 75 S to study its temporal variability on a short and on a long term scale. The meridional drift of the magnetic field with 2–3 years periodicities has been clearly evidenced in the both hemispheres.

Keywords

Sun: magnetic fieldsphotosphereactivity
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S233: Solar Activity and its Magnetic Origin , March 2006 , pp. 124 - 127
Copyright
© 2006 International Astronomical Union