Reference : Cerium: The lithium substitute in post-AGB stars
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
http://hdl.handle.net/2268/16917
Cerium: The lithium substitute in post-AGB stars
English
Reyniers, M. [> > > >]
Winckel, H. V. [> > > >]
Biémont, Emile mailto [Université de Liège - ULg > Département de physique > Physique nucléaire, atomique et spectroscopie >]
Quinet, Pascal mailto [Université de Liège - ULg > Département de physique > Physique nucléaire, atomique et spectroscopie >]
Nov-2002
Astronomy and Astrophysics
E D P Sciences
395
2
L35-L38
Yes (verified by ORBi)
International
0004-6361
1432-0746
Les Ulis Cedexa
[en] atomic data ; line : identification ; stars : AGB and post-AGB ; stars : abundances ; stars : chemically peculiar
[en] In this letter we present an alternative identification for the line detected in the spectra of s-process enriched low-mass post-AGB stars around 6708 Angstrom and which was interpreted in the literature as due to Li. Newly released line lists of lanthanide species reveal, however, the likely identification of the line to be due to a Ce II transition. We argue that this identification is consistent with the Ce abundance of all the objects discussed in the literature and conclude that in none of the low-mass s-process enriched post-AGB stars there is indication for Li-production.
Researchers ; Professionals
http://hdl.handle.net/2268/16917

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