An Updated Line List for Spectroscopic Investigation of G Stars II: Refined Solar Abundances via Extended Wavelength Coverage to 10 000 Å

Abstract

This study introduces a line list for the abundance analysis of F and G type stars across the 4080-9675 A 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 log gf 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.

arXiv comment23 pages, 7 figures and 10 tables, accepted for publication in Physics and Astronomy Reports

References in corpus (28)

• The chemical composition of the Sun
• Exploring the Milky Way stellar disk. A detailed elemental abundance study of 714 F and G dwarf stars in the Solar neighbourhood
• Solar Chemical Abundances Determined with a CO5BOLD 3D Model Atmosphere
• Abundances of the elements in the solar system
• New Grids of ATLAS9 Model Atmospheres
• NLTE line formation of Fe for late-type stars. I. Standard stars with 1D and <3D> model atmospheres
• The photospheric solar oxygen project: I. Abundance analysis of atomic lines and influence of atmospheric models
• Atomic data for the Gaia-ESO Survey
• Photospheric Abundances: Problems, Updates, Implications
• The Stagger-grid: A grid of 3D stellar atmosphere models - III. The relation to mixing-length convection theory
• Abundances in the Local Region II: F, G and K Dwarfs and Subgiants
• The TESS-HERMES survey Data Release 1: high-resolution spectroscopy of the TESS southern continuous viewing zone
• The solar photospheric nitrogen abundance. Analysis of atomic transitions with 3D and 1D model atmospheres
• Abundances of neutron-capture elements in stars of the galactic disk substructures
• The solar photospheric abundance of carbon.Analysis of atomic carbon lines with the CO5BOLD solar model
• Non-LTE Analysis for the Sodium Abundances of Metal-Poor Stars in the Galactic Disk and Halo
• Experimental and theoretical oscillator strengths of Mg I for accurate abundance analysis
• Red Supergiant Stars as Cosmic Abundance Probes: NLTE Effects in J-band Iron and Titanium Lines
• Reinvestigating $\alpha$ Cen AB in light of asteroseismic forward and inverse methods
• A peculiarity of metal-poor stars with planets ?
• Abundances in bulge stars from high-resolution, near-IR spectra I. The CNO elements observed during the science verification of CRIRES at VLT
• The solar photospheric abundance of phosphorus: results from co5bold 3D model atmospheres
• The M Dwarf Problem in the Galaxy
• High Resolution Optical Spectroscopy of the F Supergiant Proto-Planetary Nebula V887 Her=IRAS 18095+2704
• HD 179821 (V1427 Aql, IRAS 19114+0002) -- A Massive Post-Red Supergiant Star?
• High Resolution Optical Spectroscopy of a Newly Discovered Post-AGB Star with a Surprising Metallicity in the Globular Cluster M79
• The properties and environment of very young galaxies in the local Universe
• Gaia DR2 and EDR3 data and evolutionary status of post-AGB stars with high radial velocities

Cited by in corpus (1)

• Decoding the RVb Enigma of DF Cyg: Pulsations, Circumstellar Disks, and Post-RGB Evolution Revealed by Multi-Wavelength Observations