Open Access
Table C.2
Parameter descriptions for the MSMS binary catalog (parent sample, binary candidates, and golden sample).
| Parameter | Type | Description |
|---|---|---|
| source_id | Int | Gaia DR3 source identifier |
| Fundamental parameters | ||
| ra | Double | Right ascension by Gaia DR3 (deg) |
| dec | Double | Declination by Gaia DR3 (deg) |
| bp_rp | Double | Gaia DR3 B-R colors |
| phot_g_mean_mag | Double | Gaia DR3 G-band magnitude |
| parallax | Double | Gaia DR3 parallax (mas) |
| parallax_error | Double | Uncertainty in parallax measurement |
| radial_velocity | Double | Gaia DR3 radial velocity (km/s) |
| radial_velocity_error | Double | Uncertainty in Gaia DR3 radial velocity (km/s) |
| E_edhf | Double | Extinction from Bayestar19 dust map |
| A_G_edhf, A_B_edhf, A_R_edhf | Double | Extinction in G, B, and R bands from Edenhofer et al. (2024)’s dustmap |
| Best-fit results for single XP spectral model | ||
| mass_single | Double | Stellar mass from single-model (M⊙) |
| e_mass_single | Double | Uncertainty in stellar mass from single-model (M⊙) |
| mh_single | Double | Metallicity from single-model solution [M/H] |
| e_mh_single | Double | Uncertainty in metallicity from single-model solution |
| E_single | Double | Extinction from single-model |
| e_E_single | Double | Uncertainty in extinction from single-model |
| chi2_mass_mh | Double | χ2 value of the single-model fit |
| Best-fit results for binary XP spectral model | ||
| m1_binary | Double | Primary star mass (M⊙) |
| e_m1_binary | Double | Uncertainty in primary star mass (M⊙) |
| m2_binary | Double | Secondary star mass (M⊙) |
| mh_binary | Double | System photometric metallicity [M/H] |
| e_mh_binary | Double | Uncertainty in system photometric metallicity |
| q_binary | Double | Mass ratio (m2/m1) |
| e_q_binary | Double | Uncertainty in mass ratio |
| E_binary | Double | Extinction from binary-model |
| e_E_binary | Double | Uncertainty in extinction from binary-model |
| chi2_mass_mh_binary | Double | χ2 value of the binary-model fit |
| flux_ratio_mean | Double | Mean XP flux ratio between primary and secondary components |
| flux_ratio_std | Double | Standard deviation of the XP flux ratio between primary and secondary components |
| b_r_prim | Double | B-R color of the primary component |
| b_r_second | Double | B-R color of the secondary component |
| MG_prim | Double | Absolute G magnitude of the primary component |
| MG_second | Double | Absolute G magnitude of the secondary component |
| Quality flags | ||
| fit_status_single | int | Status code for single-model fit convergence |
| fit_status_binary | int | Status code for binary-model fit convergence |
| fit_success_single | Boolean | Whether the single-model fit was successful |
| fit_success_binary | Boolean | Whether the binary-model fit was successful |
| flag_extrap_m2 | Boolean | Whether secondary mass from the binary fit lower than 0.1 M⊙ |
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