Hyperfine Structure Investigation of Singly Ionized Thulium in Fourier-transform Spectra
Abstract
The hyperfine structure of 40 spectral lines of singly ionized thulium (Tm II) in emission spectra from a hollow cathode discharge lamp measured with a Fourier transform spectrometer in the wavelength range from 335 to 2345 nm has been investigated. As a result of the analysis, the magnetic dipole hyperfine structure constants A for 27 fine structure levels of Tm II were determined for the first time. In addition, the values of two magnetic dipole hyperfine structure constants A from the literature were declared incorrect, and the corrected values were given.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- July 2024
- DOI:
- arXiv:
- arXiv:2405.05309
- Bibcode:
- 2024ApJ...970...23K
- Keywords:
-
- Atomic spectroscopy;
- Atomic data;
- Solar abundances;
- 2099;
- 2216;
- 1474;
- Astrophysics - Instrumentation and Methods for Astrophysics;
- Astrophysics - Solar and Stellar Astrophysics
- E-Print:
- 15 pages, 6 figures and 3 tables, accepted for publication in ApJ
