Open Access
Table A.1.
Data model of our APOGEE DR17 spectroscopic age catalogue.
| # | Column name | Format | Description |
|---|---|---|---|
| 1 | APOGEE_ID | String (19A) | APOGEE ID (DR17) |
| 2 | spec_age_xgb | Float | Spectroscopic age from fiducial XGBoost model |
| 3 | spec_age_xgb_calib | Float | Calibrated spectroscopic age (see Fig. 4, top panel) |
| 4 | spec_age_xgb_uncert | Float | Age uncertainty estimate (see Fig. 4, bottom panel) |
| 5 | spec_age_xgb_flag | String (51A) | Human-readable warning flag for potentially problematic stars |
| 6 | spec_age_xgb_quantilereg | Float | Spectroscopic age from XGBoost quantile regression |
| 7 | spec_age_xgb_quantilereg_calib | Float | Calibrated age from XGBoost quantile regression |
| 8 | spec_age_xgb_quantilereg_sigl | Float | Lower 1σ uncertainty from XGBoost quantile regression |
| 9 | spec_age_xgb_quantilereg_sigu | Float | Upper 1σ uncertainty from XGBoost quantile regression |
| 10 | spec_age_xgb_quantilereg_flag | String (52A) | Human-readable warning flag for potentially problematic stars |
Notes. The full table is available at the CDS.
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