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galpy-Based Calculation of Kinematic and Orbital Parameters for 6527 Gaia DR3 GSP-Spec Solar Twins

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Zenodo2026-05-26 更新2026-05-29 收录
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This dataset provides kinematic and orbital parameters computed with galpy for 6527 Gaia DR3 GSP-Spec solar twins selected from the VizieR catalog J/A+A/707/A260/tablee1, associated with Taniguchi et al. (2026), “Solar twins in Gaia DR3 GSP-Spec. I. Building a large catalog of Solar twins with ages”. The parent catalog contains 6594 Gaia DR3 GSP-Spec solar twins; radial velocity information is available for 6527 of them, and the present table includes these stars for which full kinematic and orbital calculations could be performed. The reported quantities include radial velocity, Galactic velocity components U, V, W, LSR-corrected velocity components U_LSR, V_LSR, W_LSR, total LSR velocity S_LSR, kinematic population classification, Galactocentric radius R_GC, total velocity V_tot, angular momentum L_z, orbital energy E, pericentric and apocentric distances r_peri and r_apo, planar orbital eccentricity e_p, and maximum vertical orbital distance z_max. The calculations were performed using an independent galpy-based workflow. The resulting parameters were compared with the corresponding orbital quantities available in the Taniguchi et al. (2026) catalog where applicable. This dataset provides a machine-readable table of the derived kinematic and orbital quantities for reproducibility, comparison, and reuse. The CSV file contains Galactocentric positions, Galactocentric and heliocentric velocity components, LSR-corrected velocities, kinematic population labels, and basic orbital parameters. A column-by-column description is provided in the accompanying README file. The calculations adopted the MWPotential2014 Galactic potential. The solar Galactocentric distance and local circular velocity were set to R0 = 8.178 kpc and V0 = 236.9 km s^-1, respectively. The solar motion with respect to the LSR was adopted as (U_sun, V_sun, W_sun) = (11.10, 12.24, 7.25) km s^-1, following Schönrich et al. (2010).

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Zenodo
创建时间:
2026-05-26
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