Coronagraphic observations of an enhanced coronal region: I,Fexii and Nixv emission line data |
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| Authors: | R Fisher T Pope |
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| Institution: | (1) Institute for Astronomy, University of Hawaii, Honolulu, H.I., U.S.A.;(2) Present address: Big Bear Solar Observatory, Big Bear City, Calif., U.S.A. |
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| Abstract: | Nine coronal emission lines representing five stages of Fe ionization and one stage of Ni were observed in an enhanced coronal region. The data from these observations are presented along with a density model of the enhanced region obtained from the FeXIII and NiXV emission line ratios as a function of position angle. The electron densities obtained from FeXIII lines range from N
e = 108 to 109 cm–3, and are slightly lower for NiXV line data. Estimates of the variation of temperature over the enhanced region are inferred from the observed line intensities. |
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