Elemental Abundance Variations in a Decaying EUV-Bright Region

Details Elemental Abundance Variations in a Decaying EUV-Bright Region Elemental Abundance Variations in a Decaying EUV-Bright Region

May 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21640515k&link_type=abstract

American Astronomical Society, AAS Meeting #216, #405.15; Bulletin of the American Astronomical Society, Vol. 41, p.891

Astronomy and Astrophysics

Astronomy

Scientific paper

The EIS instrument on Hinode observed an EUV-bright region at N15 as it evolved during a course of four days on December 7-11, 2009. Although containing no sunspots, this region was associated with a weak magnetic concentration and exhibited large variations in loop and footpoint brightening. It was in a decay phase with dispersing magnetic field and weakening high-temperature emission. We present the variations of elemental abundances in this region among different spatial structures and with time. Implications in factors that can be associated with the First Ionization Potential (FIP) effect will be discussed.

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