Table 1.
Comparison of the standardization coefficients α, β, and γ (the stretch and color coefficients and the magnitude step value) and the tracer intrinsic contamination (c = ca + cb) with respect to the spectroscopic lsSFR used as a reference tracer.
| Tracer | tcut | ca + cb | α | β | γ | γ* |
|---|---|---|---|---|---|---|
| local sSFR [spectro.] | −10.82 | 0.0 | −0.156 ± 0.013 | 3.042 ± 0.128 | 0.127 ± 0.032 | 0.127 ± 0.032 |
| local sSFR [photo.] | −10.32 |
 |
−0.138 ± 0.012 | 3.059 ± 0.128 | 0.071 ± 0.032 | 0.078 ± 0.032 |
| local u − r | 1.74 |
 |
−0.150 ± 0.013 | 3.115 ± 0.132 | 0.092 ± 0.035 | 0.095 ± 0.030 |
| local mass | 8.37 |
 |
−0.137 ± 0.012 | 3.142 ± 0.138 | 0.053 ± 0.030 | 0.051 ± 0.028 |
| global mass | 10.00 |
 |
−0.151 ± 0.013 | 3.121 ± 0.132 | 0.116 ± 0.030 | 0.116 ± 0.027 |
| morphology | 0.37 |
 |
−0.138 ± 0.013 | 3.044 ± 0.139 | 0.030 ± 0.039 | 0.051 ± 0.036 |
Notes. γ* is the magnitude step value when fixing α and β to those obtained by the reference tracer standardization (see Sect. 6.1); tcut is the tracer cutoff.
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