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Where are the solar magnetic poles? (2015)

Pastor Yabar, A., Martinez Gonzalez, M. J., Collados, M.

Oxford University Press

In: Monthly Notices of the Royal Astronomical Society / Letters

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Publication Date: 2015-08-24

Description: Regardless of the physical origin of stellar magnetic fields – fossil or dynamo induced - an inclination angle between the magnetic and rotation axes is very often observed. Absence of observational evidence in this direction in the solar case has led to generally assume that its global magnetic field and rotation axes are well aligned. We present the detection of a monthly periodic signal of the photospheric solar magnetic field at all latitudes, and especially near the poles, revealing that the main axis of the Sun's magnetic field is not aligned with the surface rotation axis. This result reinforces the view of our Sun as a common intermediate-mass star. Furthermore, this detection challenges and imposes a strong observational constraint to modern solar dynamo theories.

Print ISSN: 1745-3925

Electronic ISSN: 1745-3933

Topics: Physics

Published by Oxford University Press

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