Table 2.
Comparison of the common catalogs of the surveys.
| APOGEE-GALAH | APOGEE-GES | GALAH-GES | ||||
|---|---|---|---|---|---|---|
| No. common stars (a) | 37 770 (15 537) | 2502 (804) | 1510 (441) | |||
| Common parameters | Teff, log g, vrad, [Fe/H], [α/Fe], vmicro | Teff, log g, vrad, [Fe/H], vmicro | Teff, log g, vrad, [Fe/H], vmicro | |||
| Common elements | C, O, Na, Mg, Al, Si, K, Ca, Ti, Ti II, V, Cr, Mn, Co, Ni, Cu | C, C I, O, Na, Mg, Al, Si, S, Ca, Ti, Ti II, V, Cr, Mn, Co, Ni, Cu | Li, C, O, Na, Mg, Al, Si, Ca, Sc, Sc II, Ti, Ti II, V, Cr, Cr II, Mn, Co, Ni, Cu, Zn, Sr, Zr, Mo, Ba II, La II, Ce II, Nd II, Sm II, Eu II | |||
| S/N cut (b) | SNR > 100 & snr_c3_iraf> 30 | SNR> 100 & SNR > 50 | snr_c3_iraf > 30 & SNR > 50 | |||
| Other quality cuts (b) | vbroad < 15 & flag_sp = =0 & flag_fe_h = =0 & VSCATTER < 1 & VSINI < 15 & VERR < 1, flags | VSCATTER < 1 & VSINI < 15 & VERR < 1 & ERROR_TEFF/TEFF < 5% & E_VRAD < 1, flags | ERROR_TEFF/TEFF < 5% & flag_sp = =0 & flag_fe_h = =0 & vbroad < 15 & VSINI < 15 & E_VRAD < 1, flags | |||
| μ ± σ | μ ± σ | μ ± σ | μ ± σ | μ ± σ | μ ± σ | |
| dwarfs | giants | dwarfs | giants | dwarfs | giants | |
| ΔTeff(K) | 43.6 ± 137.3 | −54.3 ± 91.7 | −15.0 ± 114.7 | −64.3 ± 117.2 | −60.4 ± 112.8 | 21.2 ± 111.3 |
| overall | −5.4 ± 126.6 | −57.4 ± 118.1 | −12.0 ± 125.5 | |||
| Δlog g(dex) | 0.01 ± 0.13 | 0.09 ± 0.22 | −0.03 ± 0.17 | −0.03 ± 0.33 | −0.02 ± 0.16 | −0.14 ± 0.22 |
| overall | 0.05 ± 0.19 | −0.03 ± 0.31 | −0.09 ± 0.20 | |||
| Δ[M/H](c) | 0.006 ± 0.082 | 0.039 ± 0.121 | −0.020 ± 0.077 | −0.014 ± 0.102 | −0.010 ± 0.080 | −0.107 ± 0.165 |
| overall | 0.023 ± 0.105 | −0.015 ± 0.099 | −0.072 ± 0.170 | |||
| Δ[α/H](dex) | −0.014 ± 0.082 | 0.005 ± 0.107 | ... | .... | ... | ... |
| overall | −0.005 ± 0.096 | ... | ... | |||
| Δvmicro(km s−1) | −0.34 ± 0.42 | −0.03 ± 0.36 | −0.44 ± 0.37 | −0.09 ± 0.35 | −0.10 ± 0.23 | −0.18 ± 0.19 |
| overall | −0.18 ± 0.43 | −0.16 ± 0.38 | −0.14 ± 0.22 | |||
| Δvrad(km s−1) | −0.01 ± 4.10 | −0.04 ± 2.81 | 0.49 ± 1.26 | 0.09 ± 2.69 | 0.69 ± 4.37 | −0.21 ± 4.09 |
| overall | −0.02 ± 3.51 | 0.15 ± 2.54 | 0.11 ± 4.18 | |||
Notes. The quality cuts, common parameters, and abundances are listed for the APOGEE−GALAH, APOGEE−Gaia-ESO, and GALAH−Gaia-ESO stellar catalogs. The average and scatter of differences are calculated overall, and after separating MS and GB stars. No data is given in the table cell if there is no available corresponding data. The confidence interval is ±1σ. Overall means do not differentiate between MS and RGB stars.
For more information about each filtering criterion, see Sect. 2.2.
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