Radiative lifetime measurements and transition probabilities of astrophysical interest in ErIII

Authors
Biemont, E Garnir, HP Bastin, T Palmeri, P Quinet, P Li, ZS Zhang, ZG Lokhnygin, V Svanberg, S
Citation
E. Biemont et al., Radiative lifetime measurements and transition probabilities of astrophysical interest in ErIII, M NOT R AST, 321(3), 2001, pp. 481-486
Citations number
34
Categorie Soggetti
Space Sciences
Journal title
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN journal
00358711 → ACNP
Volume
321
Issue
3
Year of publication
2001
Pages
481 - 486
Database
ISI
SICI code
0035-8711(200103)321:3<481:RLMATP>2.0.ZU;2-I
Abstract
Radiative lifetimes of seven excited states of Er iii have been measured us ing time-resolved laser-induced fluorescence following two-photon excitatio n. Relativistic Hartree-Fock calculations taking core-polarization effects into account are found to be in excellent agreement with the experimental r esults. A large set of new calculated transition probabilities is presented for many transitions of astrophysical interest. These results will be usef ul for investigating the composition of chemically peculiar stars.