Rg8 and Rg9 datasets for, 'HR-GO II: chemical abundances of low-E retrograde dynamically-tagged-groups: Revealing Thamnos as a very metal-poor substructure'

This dataset contains chemodynamical analysis results for the Rg8 and Rg9 stellar samples. The columns are defined as follows: Object, source_id: Star identifiers (Source ID from Gaia DR3). T, logg, FeH, v: Atmospheric parameters (Effective temperature, Surface gravity, Metallicity, Microturbulence) derived in this work. Errors are prefixed with 'err'. ra, dec, pmra, pmdec, parallax, radial_velocity: Astrometric data and radial velocities adopted from Gaia DR3. Orbital Parameters: x, y, z, vx, vy, vz: Galactocentric positions and velocities. Jr, Jz, Jphi: Actions computed assuming the Milky Way potential. E, ecc, inc: Total energy, eccentricity, and inclination of the orbit. rperi, rapo, zmax: Pericentric distance, apocentric distance, and maximum vertical excursion. Chemical Abundances: Elemental abundances ([X/Fe]) for C, Na, Mg, Si, Ca, Sc, Ti, V, Cr, Mn, Co, Ni, Zn, Sr, Y, Zr, Ba, La, Eu. Al_lte, Al_nlte: Aluminum abundances calculated under LTE and NLTE assumptions, respectively. Errors for each element are denoted with the suffix '_err'. For full details on the analysis methods and error estimation, please refer to the associated publication.