Table 2.
Best-fitting values for the parameters of the model described in Sect. 4.2 for the MHI − M⋆ scaling relation.
| Survey | a | b | c | χ2/d.o.f. |
|---|---|---|---|---|
| Lin. fit | ||||
| MIGHTEE | – | 0.286 ± 0.032 | 7.029 ± 0.290 | 2.764 |
| CHILES | – | 0.328 ± 0.065 | 6.547 ± 0.607 | 0.174 |
| Combined | – | 0.326 ± 0.030 | 6.579 ± 0.339 | 2.670 |
| Poly. fit | ||||
| MIGHTEE | −0.070 ± 0.002 | 1.693 ± 0.027 | – | 0.005 |
| CHILES | −0.067 ± 0.006 | 1.651 ± 0.061 | – | 1.043 |
| Combined | −0.066 ± 0.003 | 1.648 ± 0.064 | – | 1.002 |
Notes. The data points used in the fit are from Bianchetti et al. (2025). Top: best-fitting parameters of the linear fit (a = 0 by construction). Bottom: best-fitting parameters of the polynomial fit (c = 0 set as choice).
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