Free Access

Table 1

Spectroscopic surveys from which data were used.

Survey N sources Resolution ℳ(ΔT) (K) ℳ(Δlog g) (dex) ℳ(Δ [ Fe / H ]) (dex) Reference

APOGEE (DR12) 88 000 22 500 91.5 0.11 0.03 1
APOGEE (DR13)* 89 000 22 500 91.5 0.11 0.03 2
APOKASC 2 000 22 500 91.5 0.11 0.03 3
LAMOST-GAC (main sample)* 368 000 1800 115 0.19 0.15 4
LAMOST-GAC (bright sample)* 1 075 000 1800 100 0.15 0.13 5
LAMOST-CANNON* 450 000 1800 96.3 0.13 0.05 6
RAVE (DR5) 450 000 7500 92 0.20 0.10 7
RAVE-on* 450 000 7500 85 0.14 0.07 8
GCS* 13 800 20 000 80 0.10 0.10 9
SEGUE* 277 500 2000 145 0.26 0.13 10
Gaia-ESO (DR2)* 7000 16 000 50 0.10 0.07 11
AMBRE* 3400 16 000 120 0.20 0.10 12
GALAH (DR1)* 28 000 10 700 108 0.30 0.11 13
Mock 4 × 8000 100 0.10 0.10

Notes. See Sect. 2 for more information on surveys. First column contains an abbreviated designation of the survey with a star symbol (*) indicating surveys that were included in the final catalogue (other surveys are available as separate tables). The second column lists the approximate number of observations that were used in our work. The third column is the resolution of the spectra from which Teff,log g and [ Fe / H ] were derived. The fourth, fifth, and sixth columns list median uncertainties in Teff, log g and [ Fe / H ]. The last column shows the reference.

Reference. (14) Ahn et al. (2014); (15) SDSS Collaboration et al. (2017); (16) Rodrigues et al. (2014); (17) Xiang et al. (2017); (18) Xiang et al. (2017); (19) Ness et al. (2015); (20) Kordopatis et al. (2013); (21) Casey et al. (2017); (22) Casagrande et al. (2011); (23) Yanny et al. (2009); (24) Gilmore et al. (2012); (25) Worley et al. (2016); (26) Martell et al. (2017).

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.