engleski

Coronal Bright Points as Tracers for Solar Rotation in October-November 1999

Whole-disc full-resolution solar images taken in the extreme ultraviolet part of the spectrum (Fe XV line at 28.4 nm) with the EIT instrument on board the SOHO spacecraft were used to visually identify coronal bright points appropriate for solar rotation determination. From the time differences in successive tracer positions amounting to six hours the solar rotation velocity was determined tracing coronal bright points in images obtained in October and November 1999. The resulting parameters and profiles of the solar rotation are presented.

solar rotation; coronal bright points; SOHO-EIT

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