Measurement of lifetimes by laser-induced fluorescence and determination of transition probabilities of astrophysical interest in NdIII

Zhang, Z. G.; Svanberg, S.; Palmeri, P.; Quinet, Pascal; Biémont, Emile

doi:10.1051/0004-6361:20020148

Article (Scientific journals)

Measurement of lifetimes by laser-induced fluorescence and determination of transition probabilities of astrophysical interest in NdIII

Zhang, Z. G.; Svanberg, S.; Palmeri, P. et al.

2002 • In Astronomy and Astrophysics, 385 (2), p. 724-732

Peer Reviewed verified by ORBi

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https://hdl.handle.net/2268/27151

DOI
10.1051/0004-6361:20020148

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Keywords :

atomic data; atomic processes; stars : chemically peculiar

Abstract :

[en] Selective lifetime measurements by time-resolved laser-induced fluorescence spectroscopy for 5 levels belonging to the 4f(3)5d configuration of doubly ionized neodymium provide a first and useful experimental test of the relativistic Hartree-Fock calculations in this ion of astrophysical interest. As a consequence, the accuracy of the transition probabilities deduced in the present work is well assessed. These new data are expected to help astrophysicists in the future to refine the analysis of the composition of chemically peculiar stars which frequently show large overabundances of lanthanides when compared to the solar system standards.

Disciplines :

Earth sciences & physical geography

Author, co-author :

Zhang, Z. G.

Svanberg, S.

Palmeri, P.

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

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

Language :

English

Title :

Measurement of lifetimes by laser-induced fluorescence and determination of transition probabilities of astrophysical interest in NdIII

Publication date :

April 2002

Journal title :

Astronomy and Astrophysics

ISSN :

0004-6361

eISSN :

1432-0746

Publisher :

E D P Sciences, Les Ulis Cedexa, France

Volume :

385

Issue :

Pages :

724-732

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 19 March 2010

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