Fraunhofer line

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Fraun·ho·fer line

(frown'hōf-ĕr līn)
Any one of the more prominent absorption lines of the solar spectrum.
References in periodicals archive ?
The Fraunhofer lines are being broadened by electrons in the K-corona, but emission lines from the same region of the solar atmosphere, namely in the Ecorona, remain visible and sharp.
Still, the continuous nature of its emission, and the absence of Fraunhofer lines in the inner corona has been well documented [2-10].
In the end, the simplest means of accounting for the continuous emission observed in the K-corona, the absence of overlying Fraunhofer lines, and the presence of sharp emission lines in this same region of the solar atmosphere, is to invoke a condensed matter model of the Sun [18-20].

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