atomic data; line : identification; stars : chemically peculiar
Abstract :
[en] The first theoretical transition probabilities are obtained for a set of 46 Pm ii transitions of astrophysical interest. These data fill in a gap in astrophysics and will allow to establish, on a firmer basis, the presence of some lines of this radioactive element in the spectra of chemically peculiar stars and, consequently, a quantitative investigation of the stellar Pm abundance. A search for Pm ii lines in Przybylski's star (HD 101065) and in HR 465 is reported and discussed, supporting the detection of this ion. A more detailed quantitative analysis is awaiting the availability of dedicated model atmospheres for these stars.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Fivet, V.
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
Jorissen, A.
Yushchenko, A. V.
Van Eck, S.
Language :
English
Title :
Transition probabilities in singly ionized promethium and the identification of PmII lines in Przybylski's star and HR 465
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