Open Access
Table 3
Baryonic properties of the BCG calculated within 30, 50, and 100 h−1 kpc apertures, used to train the RF regressor in this study.
| Property | Description | Units |
|---|---|---|
| t30, t50, t100 | Mass-weighted stellar age within BCG apertures of 30, 50, and 100 kpc, respectively | Gyr |
| fgas,30, fgas,50, fgas,100 | Mass of the gas particles within BCG apertures of 30, 50, and 100 kpc relative to the halo mass, respectively | - |
| f*,30, f*,50, f*,100 | Mass of the star particles within BCG apertures of 30, 50, and 100 kpc relative to the halo mass, respectively | - |
| Zgas,30, Zgas,50, Zgas,100 | Mass-weighted gas metallicity within BCG apertures of 30, 50, and 100 kpc, respectively | Z⊙ |
| Z*,30, Z*,50, Z*,100 | Mass-weighted stellar metallicity within BCG apertures of 30, 50, and 100 kpc, respectively | Z⊙ |
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