Global complexes of activity

A new concept of “Global Complexes of Activity” on the Sun is presented, which brings together objects associated with both global and local fields in a single framework. Activity complexes have traditionally been identified purely from observations of active regions. We show here that a global comp...

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Bibliographic Details
Published in:Astronomy reports 2013-10, Vol.57 (10), p.786-796
Main Authors: Obridko, V. N., Shelting, B. D.
Format: Article
Language:English
Subjects:
Astronomy
Corona
Coronal holes
Evolution
Magnetic fields
MDI
Observations and Techniques
Physics
Physics and Astronomy
Solar physics
Sun
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Summary:A new concept of “Global Complexes of Activity” on the Sun is presented, which brings together objects associated with both global and local fields in a single framework. Activity complexes have traditionally been identified purely from observations of active regions. We show here that a global complex also includes coronal holes and active regions. Our analysis is based on a large dataset on magnetic fields on various scales, SOHO/MDI observations of active regions and magnetic fields, and UV observations of coronal holes. It is shown that the evolution of coronal holes and active regions are parts of a single process. The relationships between the fields on different scales during the generation of the cycle is discussed.
ISSN:1063-7729
1562-6881
DOI:10.1134/S1063772913100041