Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmsh44a..02r&link_type=abstract
American Geophysical Union, Fall Meeting 2008, abstract #SH44A-02
Astronomy and Astrophysics
Astrophysics
7500 Solar Physics, Astrophysics, And Astronomy, 7507 Chromosphere, 7509 Corona, 7511 Coronal Holes, 7524 Magnetic Fields
Scientific paper
Chromospheric full-disk magnetograms obtained by the Vector Spectromagnetograph (VSM), from the Synoptic Optical Long-term Investigations of the Sun (SOLIS) project, are utilized to study the distribution of magnetic field flux elements within the polar caps. The density of magnetic flux concentrations is found to be uniform up to latitude of 75 degree and decreases significantly toward the solar pole. Our results should have implications for the processes carrying the magnetic flux from low to high latitudes (e.g., meridional circulation). This also has implications for numerous solar phenomena such as the formation and evolution of fine polar coronal structures (i.e., polar plumes).
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