Abstract
The spectra emitted by a thulium hollow-cathode discharge lamp with argon or neon as inert gases have been recorded with a Bruker IFS 125 HR fourier transform spectrometer in the visible wavelength region from 400 to 700 nm. The paper presents the investigation of the hyperfine-structure splitting of 50 spectral lines of neutral thulium. As a result, the magnetic dipole hyperfine structure constant A for 20 fine structure levels of Tm I have been determined for the first time.
| Original language | English |
|---|---|
| Article number | 108195 |
| Journal | Journal of Quantitative Spectroscopy and Radiative Transfer |
| Volume | 287 |
| DOIs | |
| Publication status | Published - Sept 2022 |
Bibliographical note
Publisher Copyright:© 2022 Elsevier Ltd
Funding
We are grateful to Maris Tamanis and Artis Kruzins for assistance with the experiments. This study has been funded by Scientific Research Projects Coordination Unit of Istanbul University Project No.: 30048, as well as by Latvian Council of Science, project No. lzp-2020/1-088: “Advanced spectroscopic methods and tools for the study of evolved stars”.
| Funders | Funder number |
|---|---|
| Istanbul Üniversitesi | 30048 |
| Latvijas Zinātnes Padome | lzp-2020/1-088 |
Keywords
- Fourier transform spectroscopy
- Hyperfine structure
- Thulium
- Visible wavelength range