Open Access
Table 3
Description of the columns of the INT follow-up spectra of 215 V/EMP stars as a catalogue made available publicly in this work.
| Column | Description | Unit | Type |
|---|---|---|---|
| source_id | Gaia DR3 Source ID | Unitless | longint |
| ra | Gaia DR3 right ascension in ICRS (J2016) format | degrees | float |
| dec | Gaia DR3 declination in ICRS (J2016) format | degrees | float |
| G_0 | De-reddened Gaia G magnitude | unitless | Float |
| BP_0 | De-reddened Gaia GBP magnitude | Unitless | Float |
| RP_0 | De-reddened Gaia GRP magnitude | Unitless | Float |
| distance | Photometric distance or inverted parallax based distance derived in this work | mas | float |
| distance_error | Uncertainty on the photometric distance | mas | float |
| snr | Signal-to-noise ratio of the normalised INT CaT spectra | unitless | float |
| v_r | Radial velocity measured from the INT CaT spectra | km/s | float |
| dv_r | Uncertainty in the measured radial velocity | km/s | float |
| ew1 | Equivalent width of the first calcium triplet line around 8498 Å | Å | float |
| dew1 | Uncertainty on the equivalent width of the first calcium triplet line around 8498 Å | Å | float |
| ew2 | Equivalent width of the second calcium triplet line around 8542 Å | Å | float |
| dew2 | Uncertainty on the equivalent width of the second calcium triplet line around 8542 Å | Å | float |
| ew3 | Equivalent width of the third calcium triplet line around 8542 Å | Å | float |
| dew3 | Uncertainty on the equivalent width of the third calcium triplet line around 8662 Å | Å | float |
| feh | Spectroscopic metallicity derived in this work using INT CaT spectra | unitless | float |
| dfeh | Measurement uncertainty associated with the spectroscopic metallicity derived | unitless | float |
| E | Total energy | kpc km2/s2 | float |
| Jphi | Rotational action vector | kpc km/s | float |
| Jz | Vertical action vector | kpc km/s | float |
| Jr | Radial action vector | kpc km/s | float |
| zmax | Maximum height above the plane of the orbit | kpc | float |
| rapo | Apocentre of the orbit | kpc | float |
| rperi | Pericentre of the orbit | kpc | float |
| ecc | Eccentricity of the orbit | unitless | float |
| group_number | Group number for stars that are clustered in IOM space | unitless | int |
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