2003A&A...408L..33R


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.23CEST18:50:10

2003A&A...408L..33R - Astronomy and Astrophysics, volume 408, L33-37 (2003/9-4)

Detection of elements beyond the Ba-peak in VLT+UVES spectra of post-AGB stars.

REYNIERS M. and VAN WINCKEL H.

Abstract (from CDS):

In this letter, we report on our successful systematic search for lines of elements beyond the Ba-peak in spectra of s-process enriched post-AGB stars. Using newly released atomic data from both the VALD database and the D.R.E.A.M. project, we could derive abundances for several elements heavier than europium for three objects, on the base of high quality VLT+UVES spectra. The abundances of these elements are of particular interest since they turn out to be powerful constraints for chemical evolutionary AGB models. Their high abundances indicate that, also in only moderately metal deficient AGB stars, production of lead is expected to be significant.

Abstract Copyright:

Journal keyword(s): line: identification - stars: AGB and post-AGB - stars: abundances - stars: chemically peculiar

Simbad objects: 5

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Number of rows : 5

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 HD 16458 Pe* 02 47 47.7322966372 +81 26 54.517420201   7.091 5.781     K1Ba5 148 0
2 IRAS 05341+0852 pA* 05 36 55.0500719686 +08 54 08.646055747   15.36 13.55 12.46 11.43 F6I 104 0
3 IRAS 06530-0213 pA* 06 55 31.8196049619 -02 17 28.245201716     14.1     F0I 67 0
4 IRAS 08143-4406 pA* 08 16 03.0216081249 -44 16 04.636233725           F8I 23 0
5 * del Cru Pu* 12 15 08.7167245 -58 44 56.136936 1.63 2.568 2.752     B2IV 192 1

    Equat.    Gal    SGal    Ecl

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2019.10.23-18:50:10

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