VizieR Online Data Catalog: Sun and HD 218209 abundance analysis (Sahin+, 2025)
VizieR Online Data Catalog (other), vol.0830, pp.1-15, 2025 (Peer-Reviewed Journal)
- Publication Type: Article / Technical Note
- Volume: 0830
- Publication Date: 2025
- Journal Name: VizieR Online Data Catalog (other)
- Page Numbers: pp.1-15
- Akdeniz University Affiliated: Yes
Abstract
This study introduces a line list for the abundance analysis of F-and G-type stars across the 4,080-9,675{AA} wavelength range. A systematic search employing lower excitation potentials, accurate log gf values, and an updated multiplet table led to the identification of 592 lines across 33 species (25 elements), including C, O, Mg (ionized), Al, P, S, Cu, Zr (neutral), and La. To determine the uncertainties in loggf values, we assessed solar abundance using a very high-resolution (R~1000000) disk-integrated solar spectrum. These lines were confirmed to be blend-free in the solar spectrum. The line list was further validated by analyzing the metal-poor star HD,218209 (G6V), which is notable for its well-documented and reliable abundance in literature. The abundances were obtained using the equivalent width (EW) method and further refined by applying the spectrum synthesis method. A comparative analysis with the Gaia-ESO line list v.6, provided by the Gaia-ESO collaboration, revealed additional neutral and ionized Fe lines. This extensively refined line list will facilitate precise stellar parameter determinations and accurate abundance analyses of spectra within the PolarBASE spectral library.