Table 6.
Relations fit to the median age and metallicity as a function of stellar velocity dispersion for the silver and golden samples, and shown in Fig. 9.
| Parameter | Sample | ![]() |
A | B |
[km/s] |
|---|---|---|---|---|---|
| log⟨Age/yr⟩r | LEGA-C silver | 9.59 ± 0.03 | 0.5 ± 0.3 | 3.0 ± 1.2 | 236 ± 108 |
| LEGA-C golden | 9.62 ± 0.01 | 0.24 ± 0.01 | 9.5 ± 1.4 | 184 ± 4 | |
| Parameter | Sample | P0 | α | ||
| log⟨Z*/Z⊙⟩r | LEGA-C silver | 0.42 ± 0.03 | 1.2 ± 0.2 | ||
| LEGA-C golden | 0.42 ± 0.01 | 0.55 ± 0.08 | |||
Notes. For light-weighted age we use Eq. (1) and we report: (1) parameter of y-axis; (2) galaxy sample. For light-weighted age we use Eq.1 and we report (upper half table): (3) characteristic age at 102.4 km/s; (4) “A” parameter, which regulates the increasein age over the inflection; (5) “B” parameter, which regulates the σ* range of inflection; (6) characteristic σ* of the inflection point. For stellar metallicity we use the linear function in Eq. 2 and we report (lower half table): (3) the intercept P0 at log σ*, 0 = 2.4 km/s, and (3) the slope α.
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