On the Solar Rotation and Activity in the Years 1998 - 2003

Details On the Solar Rotation and Activity in the Years 1998 - 2003 On the Solar Rotation and Activity in the Years 1998 - 2003

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008espm...122.114b&link_type=abstract

"12th European Solar Physics Meeting, Freiburg, Germany, held September, 8-12, 2008. Online at http://espm.kis.uni-freiburg.de/,

Physics

Scientific paper

Full-disc full-resolution solar images obtained by the Extreme Ultraviolet Imaging Telescope on board the Solar and Heliospheric Observatory are used to analyse solar differential rotation by tracing coronal bright points. We applied an interactive and an improved automatic method of data reduction to process data obtained during the period 1998 - 2003 with the Fe XV filter (28.4 nm). Using the interactive method, the data obtained during 8 months of observation were reduced, while the automatic method was applied to analyse the whole 57-month period of observations, since the interactive method is much more time consuming than the automatic one. In the present work we especially focus on a possible relationship between the solar rotation (57 monthly values of the solar rotation parameters determined with the automatic method) and activity (relative sunspot numbers for the same months) during the maximum phase of the solar cycle 23.

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