Hyperfine Structure Analysis of Atomic Holmium in an FT Spectrum in the Visible Spectral Range

Ozdalgic B., Basar G., Kroeger S.

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, cilt.244, sa.2, 2019 (SCI-Expanded) identifier

Özet

Spectra of a holmium hollow cathode discharge lamp measured with a Fourier Transform spectrometer in the visible spectral range from 14,280 up to 25,000 cm(-1) or 400 to 700 nm have been analyzed with the focus on the hyperfine structure of atomic holmium. We investigated 164 spectral lines, and hyperfine structure constants A and B for 96 levels have been determined, 43 of which were measured for the first time.