An Updated Line List for Spectroscopic Investigation of G Stars- I: Redetermination of the Abundances in the Solar Photosphere

Şahin T., Marışmak M., Çınar N., Bilir S.

Physics and Astronomy Reports, cilt.1, sa.2, ss.54-64, 2023 (Hakemli Dergi)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 1 Sayı: 2
  • Basım Tarihi: 2023
  • Doi Numarası: 10.26650/par.2023.00007
  • Dergi Adı: Physics and Astronomy Reports
  • Derginin Tarandığı İndeksler: Other Indexes
  • Sayfa Sayıları: ss.54-64
  • İstanbul Üniversitesi Adresli: Evet

Özet

We propose a line list that may be useful for the abundance analysis of G-type stars in the wavelength range 4080 – 6780 Å. It is expected that the line list will be useful for surveys/libraries with overlapping spectral regions (e.g. ELODIE/SOPHIE libraries, UVES-580 setting of Gaia-ESO), and in particular for the analysis of F- and G-type stars in general. The atomic data are supplemented by detailed references to the sources. We estimated the Solar abundances using stellar lines and the high-resolution Kitt Peak National Observatory (KPNO) spectra of the Sun to determine the uncertainty in the log 𝑔 𝑓 values. By undertaking a systematic search that makes use of the lower excitation potential and 𝑔 𝑓 -values and using revised multiplet table as an initial guide, we identified 363 lines of 24 species that have accurate 𝑔 𝑓 -values and are free of blends in the spectra of the Sun and a Solar analogue star, HD 218209 (G6V), for which accurate and up-to-date abundances were obtained from both ELODIE and PolarBASE spectra of the star. For the common lines with the Gaia-ESO line list v.6 provided by the Gaia-ESO collaboration, we discovered significant inconsistencies in the 𝑔 𝑓 -values for certain lines of varying species.