Abstract
High-resolution spectroscopy and standard LTE analysis of 31 barium and normal red giants (Astron. Astrophys. 283, 1994, p. 937) shows a selective enhancement of Ba (∼+0.5 dex) in two stars. HR 3845 and HD 130386, relative to the standard star ε Vir. We do not overinterpret these enhancements due to possible errors in the equivalent widths or in the atmospheric parameters. The non-LTE analysis of BaII in the atmospheres of red (barium) giants shows that the corrections for the non-LTE effects is relatively small, reaching a maximum of −0.16 dex, therefore, the enhancement of barium had apparently another nature.
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Mashonkina, L.I., Začs, L. On the problem of selective enhancement of barium in the atmospheres of BaII stars. Astrophys Space Sci 236, 185–199 (1996). https://doi.org/10.1007/BF00645143
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DOI: https://doi.org/10.1007/BF00645143