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Celestial Spectroscopy1

Nature volume 88, page 416 (25 January 1912) | Download Citation

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Abstract

THE publication referred to below contains an account of six separate and distinct investigations, which have been grouped together under the above heading. In part i. are given the results of a comparative study of the sun (Fraunhoferic), chromosphere, and lower type star spectra in relation to the sun-spot spectrum. Part ii. contains an account of an investigation into the spectrum of e Ursæ Majoris as compared with the normal Sirian spectrum. Under part iii. is found a discussion of the occurrence of nitrogen lines in the stellar spectra, and under part iv. lists of the enhanced lines of certain metals, which have not previously been published. The waye-lengths of certain well-defined lines of simple and definite origin, which are peculiarly suitable for radial velocity measurements, are given in part v., while under part vi. are grouped the wave-lengths of those well-marked lines occurring in celestial spectra for which no terrestrial equivalents have yet been found.

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DOI

https://doi.org/10.1038/088416a0

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