Detailed homogeneous abundance studies of 14 Galactic s-process enriched post-AGB stars: In search of lead (Pb)

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Volume 587 (March 2016)

A&A, 587 (2016) A6

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Table 8

Overview of the C/O ratio, the metallicity, and s-process indices for our sample of stars.

Object	C/O	[Fe/H]	[ls/Fe]	[hs/Fe]	[s/Fe]	[hs/ls]

IRAS 05113+1347	2.42 ± 0.40	–0.49 ± 0.15	1.33 ± 0.13	1.65 ± 0.07	1.54 ± 0.07	0.32 ± 0.15
IRAS 05341+0852	1.06 ± 0.30	–0.54 ± 0.11	1.87 ± 0.08	2.24 ± 0.06	2.12 ± 0.05	0.37 ± 0.10
IRAS 06530-0213	1.66 ± 0.39	–0.32 ± 0.11	1.75 ± 0.09	2.04 ± 0.08	1.94 ± 0.06	0.29 ± 0.13
IRAS 07134+1005	1.24 ± 0.29	–0.91 ± 0.20	1.64 ± 0.13	1.63 ± 0.20	1.63 ± 0.14	–0.01 ± 0.24
IRAS 07430+1115	1.71 ± 0.30	–0.31 ± 0.15	1.30 ± 0.14	1.55 ± 0.06	1.47 ± 0.06	0.25 ± 0.15
IRAS 08143-4406^a	1.66 ± 0.39	–0.43 ± 0.11	1.77 ± 0.08	1.58 ± 0.06	1.65 ± 0.05	–0.19 ± 0.11
IRAS 08281-4850	2.34 ± 0.42	–0.26 ± 0.11	1.57 ± 0.11	1.58 ± 0.12	1.58 ± 0.09	0.01 ± 0.17
IRAS 13245-5036	1.11 ± 0.30	–0.30 ± 0.10	1.56 ± 0.14	2.03 ± 0.11	1.88 ± 0.09	0.47 ± 0.18
IRAS 14325-6428	2.27 ± 0.40	–0.56 ± 0.10	1.25 ± 0.15	1.33 ± 0.19	1.30 ± 0.14	0.08 ± 0.24
IRAS 14429-4539	1.29 ± 0.26	–0.18 ± 0.11	1.29 ± 0.15	1.47 ± 0.10	1.41 ± 0.08	0.18 ± 0.08
IRAS 17279-1119	0.94 ± 0.22	–0.64 ± 0.12	0.74 ± 0.08	0.92 ± 0.09	0.86 ± 0.07	0.18 ± 0.12
IRAS 19500-1709	1.02 ± 0.17	–0.59 ± 0.10	1.37 ± 0.29	1.34 ± 0.30	1.35 ± 0.21	–0.03 ± 0.41
IRAS 22223+4327	1.04 ± 0.22	–0.30 ± 0.11	1.34 ± 0.07	0.88 ± 0.07	1.03 ± 0.05	–0.46 ± 0.10
IRAS 22272+5435	1.46 ± 0.26	–0.77 ± 0.12	1.61 ± 0.08	1.90 ± 0.07	1.80 ± 0.05	0.28 ± 0.11

Notes.

^(a)

C/O ratio is calculated from the results of the Red580 observations of IRAS 08143-4406; all other results are calculated from the results of the Blue437 observations.

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