Temperature and Abundance Variations of an Active Region in Three Solar Rotations

Details Temperature and Abundance Variations of an Active Region in Three Solar Rotations Temperature and Abundance Variations of an Active Region in Three Solar Rotations

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agufmsh52a0472k&link_type=abstract

American Geophysical Union, Fall Meeting 2002, abstract #SH52A-0472

Astronomy and Astrophysics

Astrophysics

7500 Solar Physics, Astrophysics, And Astronomy, 7509 Corona, 7549 Ultraviolet Emissions

Scientific paper

Active region 9718 (AR 9718) appeared at the east limb on November 26, 2001 which was newly formed when it was at the backside of the Sun. It survives through three solar rotations -- AR 9755 and AR 9798 for subsequent rotations. AR 9798 decayed to no visible sunspot before it reached the west limb. SOHO/UVCS observed this region four times, as part of SOHO JOP 151, when it was at the limbs (AR 9718 at the west limb, AR 9755 at both the east and west limbs, and AR 9798 at the west limb). SOHO/CDS made observations when AR 9718 and AR 9755 were at the west limb. We investigate the temperature and abundance variations of this active region during its lifetime, and look for possible correlations between these physical parameters and its magnetic characteristics.

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