Atomic Physics for Atmospheric Composition Measurements |
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Authors: | PR Young HE Mason |
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Institution: | (1) Department of Applied Mathematics and Theoretical Physics, Silver Street, Cambridge, CB3 9EW, United Kingdom |
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Abstract: | The atomic physics relevant to the interpretation of solar spectra produced by plasmas at temperatures ≳ 105 K are discussed.
Methods for determining relative abundance ratios are presented and examples provided from the Coronal Diagnostic Spectrometer
on board SOHO. In particular, the Fe/Si ratio in the corona is found to be close to photospheric; the Mg/Ne ratio in the transition
region is found to vary by an order of magnitude in different solar features. The Mg/Ne ratios in supergranule cell centres
and the network are separated for the first time, although no significant differences are found.
This revised version was published online in June 2006 with corrections to the Cover Date. |
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Keywords: | Corona Transition Region Abundances CDS/SOHO |
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