| Issue |
A&A
Volume 516, June-July 2010
|
|
|---|---|---|
| Article Number | A70 | |
| Number of page(s) | 20 | |
| Section | Atomic, molecular, and nuclear data | |
| DOI | https://doi.org/10.1051/0004-6361/200913922 | |
| Published online | 01 July 2010 | |
Hyperfine structure measurements of neutral niobium with Fourier transform spectroscopy
1
Hochschule für Technik und Wirtschaft Berlin, Fachbereich 1, Wilhelminenhofstr. 75A, 12459 Berlin, Germany e-mail: sophie.kroeger@htw-berlin.de
2
Istanbul University, Faculty of Science, Physics Department, 34134 Vezneciler, Istanbul, Turkey
3
Laser Centre, The University of Latvia, Rainis Boulevard 19, 1586 Riga, Latvia
Received:
21
December
2009
Accepted:
10
March
2010
Aims. We report on experimental studies of hyperfine structure splitting of neutral niobium.
Methods. We used high-resolution Fourier transform spectroscopy to record a spectrum of niobium produced with a hollow cathode discharge lamp in the range of wavenumbers from 10 000 cm-1 to 30 000 cm-1.
Results. The magnetic dipole hyperfine structure constants A were determined for the 109 levels of odd parity by analyzing the profiles of 224 spectral lines. The A values of 57 of these level are reported for the first time.
Key words: atomic data / methods: laboratory / techniques: spectroscopic / line: profiles
© ESO, 2010
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