2022MNRAS.510.4808Z

Query : 2022MNRAS.510.4808Z

2022MNRAS.510.4808Z - Mon. Not. R. Astron. Soc., 510, 4808-4818 (2022/March-2)

Radiative lifetimes, branching fractions, and oscillator strengths for highly excited levels in singly ionized tantalum (Ta II).

ZHANG L., WU Y., LIU M., MA H., QUINET P. and DAI Z.

Abstract (from CDS):

Radiative lifetimes of 28 levels of Ta II in the energy range 29256.907-55128.389 cm–1 were measured by time-resolved laser-induced fluorescence (TR-LIF) spectroscopy in laser-ablation plasma. Among the results, to our knowledge, 24 lifetimes are reported for the first time. These lifetimes, ranging from 2.7 to 111 ns, were combined with theoretical branching fractions obtained from pseudo-relativistic Hartree-Fock calculations including core-polarization effects to deduce semi-empirical transition probabilities and oscillator strengths for 284 Ta II spectral lines.

Abstract Copyright: © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): atomic data - methods: laboratory: atomic - techniques: spectroscopic

Simbad objects: 3

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Number of rows : 3
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 BD-16 251 RG* 01 29 31.1311443552 -16 00 45.495314460 12.527 12.427 11.642 11.189 10.713 CEMP 318 0
2 HD 72660 * 08 34 01.6141823952 -02 09 05.600032848   5.797 5.792     A0V 146 0
3 * chi Lup SB* 15 50 57.5453432166 -33 37 37.728345509 3.77 3.909 3.946     B9III 318 0

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