Eur. Phys. J. D 39, 167-172 (2006)
https://doi.org/10.1140/epjd/e2006-00101-8

Transition wavelengths and probabilities for spectral lines of Zr III

¹ Departamento Física, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
² Centro de Física Atómica da Universidade de Lisboa, Av. Prof. Gama Pinto 2, 1649-003 Lisboa, Portugal
³ Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Monte de Caparica, 2825-114 Caparica, Portugal

Corresponding author: ^a mdmartins@fc.ul.pt

Received: 27 December 2005
Revised: 7 March 2006
Published online: 5 May 2006

Abstract

Wavelengths and oscillator strengths for all 4d4f↦4d² dipole-allowed fine-structure transitions in Zr III have been calculated within the Multi-Configuration Dirac-Fock method with QED corrections. These transitions are included in the spectrum of some chemically peculiar stars, like the B-type star χ Lupi observed by the Hubble space telescope. The results are compared to existing experimental and semi-empirical data.