Table 2.
Median values of the main physical properties of our primary sample of LEGA-C galaxies, in different stellar mass bins.
| Mass bin | Nobj | log⟨M⋆⟩ | log⟨SFR100 Myrs⟩ | log⟨sSFR100 Myrs⟩ | ⟨t⋆, mw⟩ | ⟨t⋆, lw⟩ | log⟨Z⋆⟩ |  |
dust index ⟨n⟩ |
|---|---|---|---|---|---|---|---|---|---|
| log(M⋆) | [M⊙] | [M⊙/yr] | [yr−1] | [Gyr] | [Gyr] | [Z⊙] | |||
| Full sample | |||||||||
| [9,10.5) | 469 | 10.31 ± 0.01 | 0.61 ± 0.05 | −9.65 ± 0.05 | 3.17 ± 0.06 | 0.87 ± 0.06 | −0.13 ± 0.02 | 0.65 ± 0.03 | −0.08 ± 0.02 |
| [10.5,11) | 1233 | 10.80 ± 0.01 | 0.32 ± 0.03 | −10.46 ± 0.04 | 3.81 ± 0.03 | 2.10 ± 0.04 | −0.04 ± 0.01 | 0.50 ± 0.01 | −0.07 ± 0.01 |
| [11,11.5) | 1103 | 11.19 ± 0.01 | −0.06 ± 0.03 | −11.25 ± 0.03 | 4.23 ± 0.03 | 3.31 ± 0.05 | 0.02 ± 0.01 | 0.27 ± 0.01 | −0.11 ± 0.01 |
| [11.5,12) | 103 | 11.59 ± 0.01 | 0.12 ± 0.09 | −11.52 ± 0.09 | 4.35 ± 0.10 | 3.69 ± 0.13 | 0.13 ± 0.02 | 0.27 ± 0.04 | −0.16 ± 0.04 |
| [9,12) | 2908 | 10.93 ± 0.01 | 0.25 ± 0.02 | −10.68 ± 0.02 | 3.96 ± 0.02 | 2.44 ± 0.03 | −0.02 ± 0.01 | 0.44 ± 0.01 | −0.09 ± 0.01 |
| Star-forming | |||||||||
| [9,10.5) | 406 | 10.31 ± 0.01 | 0.75 ± 0.03 | −9.56 ± 0.03 | 3.05 ± 0.06 | 0.71 ± 0.04 | −0.17 ± 0.02 | 0.68 ± 0.03 | −0.05 ± 0.02 |
| [10.5,11) | 778 | 10.78 ± 0.01 | 0.81 ± 0.02 | −9.99 ± 0.02 | 3.44 ± 0.03 | 1.39 ± 0.04 | −0.08 ± 0.01 | 0.72 ± 0.01 | 0.02 ± 0.01 |
| [11,11.5) | 481 | 11.16 ± 0.01 | 0.89 ± 0.03 | −10.31 ± 0.03 | 3.76 ± 0.04 | 2.08 ± 0.05 | −0.04 ± 0.02 | 0.66 ± 0.02 | 0.11 ± 0.01 |
| [11.5,12) | 35 | 11.59 ± 0.01 | 1.06 ± 0.13 | −10.54 ± 0.13 | 4.02 ± 0.16 | 2.74 ± 0.20 | 0.02 ± 0.03 | 0.54 ± 0.08 | 0.16 ± 0.06 |
| [9,12) | 1700 | 10.81 ± 0.01 | 0.80 ± 0.02 | −9.98 ± 0.02 | 3.46 ± 0.03 | 1.39 ± 0.03 | −0.08 ± 0.01 | 0.69 ± 0.01 | 0.02 ± 0.01 |
| Quiescent | |||||||||
| [9,10.5) | 63 | 10.37 ± 0.04 | −1.59 ± 0.12 | −11.77 ± 0.12 | 4.68 ± 0.15 | 3.74 ± 0.19 | −0.01 ± 0.04 | 0.33 ± 0.15 | −0.27 ± 0.04 |
| [10.5,11) | 455 | 10.83 ± 0.01 | −1.11 ± 0.04 | −11.97 ± 0.04 | 4.52 ± 0.05 | 3.96 ± 0.06 | 0.02 ± 0.01 | 0.12 ± 0.02 | −0.17 ± 0.01 |
| [11,11.5) | 622 | 11.21 ± 0.01 | −0.66 ± 0.03 | −11.89 ± 0.03 | 4.57 ± 0.04 | 4.01 ± 0.05 | 0.12 ± 0.01 | 0.11 ± 0.01 | −0.24 ± 0.01 |
| [11.5,12) | 68 | 11.59 ± 0.01 | −0.14 ± 0.09 | −11.78 ± 0.09 | 4.63 ± 0.11 | 4.05 ± 0.12 | 0.16 ± 0.03 | 0.16 ± 0.05 | −0.22 ± 0.04 |
| [9,12) | 1208 | 11.05 ± 0.01 | −0.86 ± 0.03 | −11.91 ± 0.02 | 4.55 ± 0.03 | 3.99 ± 0.03 | 0.09 ± 0.01 | 0.12 ± 0.01 | −0.22 ± 0.01 |
Notes. The properties presented here are the stellar mass (M⋆), the average SFR over the last 100 Myrs (SFR100 Myrs), the mass-weighted stellar age (t⋆, mw), the light-weighted stellar age (t⋆, lw) weighted by the bolometric luminosity, the stellar metallicity (Z⋆), the diffuse dust component in the V band (
), and the dust attenuation slope index (n). For every quantity, we provide the statistical uncertainties computed as 
, where N is the number of galaxies within the stellar mass bin.
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