New determination of abundances and stellar parameters for a set of weak G-band stars

A. Palacios; G. Jasniewicz; T. Masseron; F. Thévenin; J. Itam-Pasquet; M. Parthasarathy

doi:10.1051/0004-6361/201526566

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Volume 587 (March 2016)

A&A, 587 (2016) A42

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Table 4

Errors on abundance determination.

[X/H]	Δ([X/H])^a	Δ([X/H])^b	random error
(dex)	(dex)	(dex)	(dex)

C	0.067	0.129	0.12
N	0.134	0.116	0.11
O	–0.168	–0.028	0.06
Li	0.212	–0.023	0.05
Na	0.186	–0.069	0.10
Ba	–0.189	–0.071	0.10
Sr	0.043	0.033	0.17

Notes. Columns 2 and 3: systematic errors;

^(a)

comparison between abundances deduced from two different atmosphere models (T_eff = 5206 K, log g = 2.4 and T_eff = 5037 K, log g = 2.75) for HD 56438. For each element X, Δ([X/H]) = [X/H]_{(5206K model)} − [X/H]_(5037Kmodel).

^(b)

Comparison between abundances obtained with a C-deficient atmosphere model and a solar atmosphere model. For each element X, Δ([X/H]) = [X/H]_{C−deficient model} − [X/H]_solarmodel.

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