Radiative lifetime measurements and transition probabilities of astrophysical interest in Er III

[en] Radiative lifetimes of seven excited states of Er III have been measured using time-resolved laser-induced fluorescence following two-photon excitation. Relativistic Hartree-Fock calculations taking core-polarization effects into account are found to be in excellent agreement with the experimental results. A large set of new calculated transition probabilities is presented for many transitions of astrophysical interest. These results will be useful for investigating the composition of chemically peculiar stars.

Disciplines :

Physics

Author, co-author :

Biémont, Emile ; Université de Liège - ULiège > Département de physique > Physique nucléaire, atomique et spectroscopie

Garnir, Henri-Pierre ; Université de Liège - ULiège > Département de physique > Physique nucléaire, atomique et spectroscopie

Bastin, Thierry ; Université de Liège - ULiège > Département de physique > Physique des atomes froids

Palmeri, P.

Quinet, Pascal ; Université de Liège - ULiège > Département de physique > Physique nucléaire, atomique et spectroscopie

Li, Z. S.

Zhang, Z. G.

Lokhnygin, V.

Svanberg, S.

Language :

English

Title :

Radiative lifetime measurements and transition probabilities of astrophysical interest in Er III

Publication date :

2001

Journal title :

Monthly Notices of the Royal Astronomical Society

ISSN :

0035-8711

eISSN :

1365-2966

Publisher :

Blackwell Publishing, Oxford, United Kingdom

Volume :

321

Pages :

481-486

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 30 November 2009

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