Table 2.
Parameter values of the evolution of the SFH shape parameters with stellar mass and redshift for the red and blue galaxy populations.
| Parameter | Red | Blue |
|---|---|---|
| amass, evo, intcpt | 0.223 | –0.655 |
| bmass, evo, intcpt | 15.143 | 35.018 |
| amass, evo, slope | –0.104 | 0.006 |
| bmass, evo, slope | –1.524 | –3.544 |
| log(mperiod)mass, evo, intcpt | 1.198 | 2.727 |
| log(mperiod)mass, evo, slope | –0.094 | –0.210 |
| mskewmass, evo, intcpt | –0.554 | 0.027 |
| mskewmass, evo, slope | 0.063 | 0.016 |
Notes. Parameters used for the SFH modelling of red and blue galaxies. Galaxy SFHs are described by a truncated skewed normal distribution (Robotham et al. 2022). Shape parameters of this SFH parametrisation (mpeak, mperiod and mskew) are sampled from a multivariate truncated normal distribution, whose mean is different for each galaxy as the shape parameters depend on its stellar mass and redshift. The parameter distribution is modelled using the observed data from GAMA and DEVILS (Bellstedt et al. 2021, 2024; Thorne et al. 2021, 2022b). The covariance is instead fixed and estimated for blue and red galaxies from the residuals between the GAMA and DEVILS original distribution of SFH shape parameters and that obtained from sampling with the best-fitting parameters (we do not report the covariance to avoid an overly long table). Details of the sampling are provided in Sect. 3.3.
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