Iron Line Ratio Analysis in an Active Region

Details Iron Line Ratio Analysis in an Active Region Iron Line Ratio Analysis in an Active Region

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...210.7204w&link_type=abstract

American Astronomical Society Meeting 210, #72.04; Bulletin of the American Astronomical Society, Vol. 39, p.179

Astronomy and Astrophysics

Astronomy

Scientific paper

Increased diagnostic capability of the EIS instrument on board Hinode (Solar-B) is demonstrated with a set of iron emission lines appearing in the two EIS observing wavelengths (170 - 210 A & 250 - 290 A) and their line intensity ratios. First-light spectra of a small active region show iron lines at the ionization stages of FeVIII (185.2 A & 186.6 A) through FeXVII (204.7 A, 254.9 A, & 269.4 A). Decay phase spectra of a C-class flare confirms the presence of this higher temperature line; FeXVII at 254.9 A more clearly, as well as those lines of flare temperatures; FeXXIV (192.0 A & 255.1 A) and FeXXIII (263.8 A).

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