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Small magnetic structures near the polar regions of the Sun

Published online by Cambridge University Press:  12 September 2017

I. Cabello Open the ORCID record for I. Cabello [Opens in a new window] ,
J. Blanco Rodríguez ,
L. Balmaceda  and
V. Domingo
I. Cabello
Affiliation:
UTN-Facultad Regional Mendoza, CONICET, CEDS, Mendoza, Argentina email: icabello@mendoza-conicet.gob.ar
J. Blanco Rodríguez
Affiliation:
Grupo de Astronomía y Ciencias del Espacio/Image Processing Laboratory, Universitat de València, Spain
L. Balmaceda
Affiliation:
George Mason University, Fairfax, VA, USA
V. Domingo
Affiliation:
Grupo de Astronomía y Ciencias del Espacio/Image Processing Laboratory, Universitat de València, Spain
Rights & Permissions [Opens in a new window]

Abstract

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The study of the small magnetic structures of the solar photosphere is of great relevance because of their association with concentrations of magnetic field and their possible contribution to the variations of the Total Solar Irradiance. These structures are known to appear close to active regions and ubiquitously in the quiet Sun areas. Numerous studies about their distribution across all over the solar surface have been done with high-resolution instrumentation. However, since the observations have always been carried out from the ecliptic plane, their distribution near the polar regions is not well known. Future missions, like Solar Orbiter, will certainly provide valuable information on these yet unexplored regions. In this work, and in preparation for that moment, we select favorable periods for the observation of the polar regions of the Sun, and study the fraction of covered surface by small magnetic structures and its variation with the solar activity.

Keywords

Sun: photosphereSun: magnetic fieldsSun: activity
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S327: Fine Structure and Dynamics of the Solar Atmosphere , October 2016 , pp. 40 - 45
Copyright
Copyright © International Astronomical Union 2017 

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