Table A.1
Description of the catalogue of 12 760 successfully analysed binary stars, available in electronic form at the CDS.
| Column | Unit | Description |
|---|---|---|
| sobject_id | Unique per-observation star ID (spectrum ID) | |
| star_id | 2MASS ID number by default, UCAC4 ID number if 2MASS unavailable (begins with UCAC4-) | |
| gaia_id | Gaia DR2 identifier | |
| field_id | GALAH field identification number | |
| raj2000 | deg | Right ascension from 2MASS, J2000 |
| dej2000 | deg | Declination from 2MASS, J2000 |
| Bmag | mag | B magnitude from APASS |
| e_Bmag | mag | Uncertainty of Bmag |
| Vmag | mag | V magnitude from APASS |
| e_Vmag | mag | Uncertainty of Vmag |
| GBPmag | mag | GBP magnitude from Gaia DR2 |
| e_GBPmag | mag | Uncertainty of GBPmag |
| Gmag | mag | G magnitude from Gaia DR2 |
| e_Gmag | mag | Uncertainty of Gmag |
| GRPmag | mag | GRP magnitude from Gaia DR2 |
| e_GRPmag | mag | Uncertainty of GRPmag |
| Jmag | mag | J magnitude from 2MASS |
| e_Jmag | mag | Uncertainty of Jmag |
| Hmag | mag | H magnitude from 2MASS |
| e_Hmag | mag | Uncertainty of Hmag |
| Kmag | mag | Ks magnitude from 2MASS |
| e_Kmag | mag | Uncertainty of Kmag |
| W1mag | mag | W1 magnitude from WISE |
| e_W1mag | mag | Uncertainty of W1mag |
| W2mag | mag | W2 magnitude from WISE |
| e_W2mag | mag | Uncertainty of W2mag |
| parallax | mas | Parallax from Gaia DR2 |
| e_parallax | mas | Uncertainty of parallax |
| sn_c1 | S/N per pixel in the HERMES blue channel (GALAH spectral band 1) | |
| sn_c2 | S/N per pixel in the HERMES green channel (GALAH spectral band 2) | |
| sn_c3 | S/N per pixel in the HERMES red channel (GALAH spectral band 3) | |
| sn_c4 | S/N per pixel in the HERMES IR channel (GALAH spectral band 4) | |
| flag_cannon | Flags for spectrum information in a bitmask format (see Buder et al. 2018) | |
| teff1 | K | Effective temperature – primary component |
| teff2 | K | Effective temperature – secondary component |
| log g1 | dex | Surface gravity – primary component |
| log g2 | dex | Surface gravity – secondary component |
| feh | dex | Iron abundance ([Fe/H]) |
| V1 | km s−1 | RV – primary component |
| V2 | km s−1 | RV – secondary component |
| ratio1 | Ratio of spectral flux in GALAH band 1 (secondary/primary) | |
| ratio2 | Ratio of spectral flux in GALAH band 2 (secondary/primary) | |
| ratio3 | Ratio of spectral flux in GALAH band 3 (secondary/primary) | |
| ratio4 | Ratio of spectral flux in GALAH band 4 (secondary/primary) | |
| vmic1 | km s−1 | Microturbulence velocity – primary component |
| vmic2 | km s−1 | Microturbulence velocity – secondary component |
| vsini1 | km s−1 | Line broadening – primary component |
| vsini2 | km s−1 | Line broadening – secondary component |
| reddening | Interstellar reddening | |
| r1 | R⊙ | Stellar radius – primary component |
| r2 | R⊙ | Stellar radius – secondary component |
| chi2_binary_pipeline |  , see Sect. 3.2 |
|
| chi2_binary_pipeline_spec |  (see Sect. 3.2) |
|
| chi2_binary_pipeline_phot |  (see Sect. 3.2) |
|
| ruwe | Renormalised unit weight error (RUWE, Gaia DR2) |
Notes. The columns in this table that list direct products of the binary pipeline (from teff1 to r2) are placeholders for actual columns in the catalogue, where each placeholder contains five columns to report the 16th, 50th, and 84th percentile along withe the mean and mode of the posterior distributions (e.g. teff1_16, teff1_50, teff1_84, teff1_mean, and teff1_mode for the effective temperature of the primary component, see Sect. 3.2.4 for more details).
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