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absorption lines

 

Definition: the dark lines in the solar spectrum corresponding to wavelengths originally emitted by inner layers of the Sun but then absorbed by various elements present in gaseous form in cooler layers and in the Earth's atmosphere.

Synonym(s): Fraunhofer lines

Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

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