Distribution of the Chromospheric Network Magnetic Flux in the Solar Polar Regions From 2003 -- 2009

Details Distribution of the Chromospheric Network Magnetic Flux in the Solar Polar Regions From 2003 -- 2009 Distribution of the Chromospheric Network Magnetic Flux in the Solar Polar Regions From 2003 -- 2009

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009spd....40.0923r&link_type=abstract

American Astronomical Society, SPD meeting #40, #9.23; Bulletin of the American Astronomical Society, Vol. 41, p.821

Astronomy and Astrophysics

Astronomy

Scientific paper

We present a detailed analysis of the latitudinal distribution of magnetic flux concentrations within the polar regions of the Sun. Line-of-sight magnetograms (Ca II 854.2 nm) from the declining phase of solar cycle 23 (September 2003) till the present minimum from the SOLIS/VSM instrument are utilized. The area density distribution of relatively large magnetic flux concentrations averaged over months is found to decrease significantly close to the solar poles. These results are important for numerous solar phenomena (e. g., flux transport mechanisms, polar coronal jets and plumes, solar wind). We also discuss changes in the flux distribution with the solar cycle.

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