Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: How to reconcile the C and s-process abundances in the metal-poor star
  V453 Oph ?   In this poster we present a detailed chemical analysis of the RV Tauri star
of low intrinsic metallicity, V453 Oph ([Fe/H]=-2.2), which shows a mild but
clear s-process surface overabundance. This result is strengthened by a
relative analysis to the RV Tauri star DS Aqr of similar metal deficiency
([Fe/H]=-1.6), but without such s-process enrichment. A remarkable result is
that the s-process enrichment of V453 Oph is not accompanied by a measurable C
enhancement. To explain the surface abundances observed in V453 Oph, two
nucleosynthesis models are considered. The first model assumes the partial
mixing of protons during the radiative interpulse phase while the second
scenario is based on the possible production of s-process elements within the
flash-driven convective pulse only. Both models can give a satisfactory
explanation for the s-process enrichment of V453 Oph, but not the simultaneous
low C-abundance observed.

32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
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The categories of this paper are: funct-an