Measurements and Calculations of Radiative Parameters for Odd-parity Levels in Nb ii
Experimental radiative lifetimes for 34 odd-parity levels belonging to 4d 35p and 4d 25s5s configurations of Nb ii were measured by the time-resolved laser-induced fluorescence method. The results range from 2.2 to 11.5 ns, and 30 of them were reported for the first time, as far as we know. The theo...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Astronomical Society
2022
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| Online Access: | View Fulltext in Publisher |
| LEADER | 01595nam a2200217Ia 4500 | ||
|---|---|---|---|
| 001 | 10.3847-1538-4365-ac5aad | ||
| 008 | 220425s2022 CNT 000 0 und d | ||
| 020 | |a 00670049 (ISSN) | ||
| 245 | 1 | 0 | |a Measurements and Calculations of Radiative Parameters for Odd-parity Levels in Nb ii |
| 260 | 0 | |b American Astronomical Society |c 2022 | |
| 856 | |z View Fulltext in Publisher |u https://doi.org/10.3847/1538-4365/ac5aad | ||
| 520 | 3 | |a Experimental radiative lifetimes for 34 odd-parity levels belonging to 4d 35p and 4d 25s5s configurations of Nb ii were measured by the time-resolved laser-induced fluorescence method. The results range from 2.2 to 11.5 ns, and 30 of them were reported for the first time, as far as we know. The theoretical radiative lifetimes for these levels were also calculated by the pseudorelativistic Hartree-Fock method including core-polarization contributions (HFR+CPOL) and the fully relativistic multiconfiguration Dirac-Hartree-Fock method, and branching fractions for these levels were also calculated by HFR+CPOL. By combining the experimental lifetimes and the calculated branching fraction values, the semiempirical transition probabilities and oscillator strengths for 389 Nb ii lines were obtained. © 2022. The Author(s). Published by the American Astronomical Society. | |
| 700 | 1 | |a Dai, Z. |e author | |
| 700 | 1 | |a Geng, Y. |e author | |
| 700 | 1 | |a Liu, Y. |e author | |
| 700 | 1 | |a Quinet, P. |e author | |
| 700 | 1 | |a Wang, T. |e author | |
| 700 | 1 | |a Yan, B. |e author | |
| 700 | 1 | |a Yu, Z. |e author | |
| 700 | 1 | |a Zheng, H. |e author | |
| 773 | |t Astrophysical Journal, Supplement Series | ||