Type Ia supernovae data with scalar-tensor gravity

We study the use of type Ia supernovae (SNe Ia) in context scalar-tensor theories gravity, taking as a working example induced equivalent to Jordan-Brans-Dicke theory. Winking at accurate and precision cosmology, we test correction introduced by time variation Newton's constant, predicted theories, on SNe distance modulus relation. find that for gravity coupling parameter is constrained from $\xi < 0.0095$ (95\% CL) using Pantheon data alone down 0.00063$ combination with {\em Planck} release DR3 compilation baryon acoustic oscillations (BAO) measurements BOSS DR12. In this minimal case improvements terms constraints cosmological parameters coming addition cosmic microwave background (CMB) BAO limited, $\sim7\%$ 95\% CL upper bound $\xi$. Allowing value gravitational constant today depart Newton further tightens obtained CMB standard 22\% parameter, i.e., 0.00064$ CL. finally show class modified models prior absolute magnitude $M_B$ sample leads results which are very consistent those imposing $H_0$, happens other early-type} accommodate larger $H_0$ compared $\Lambda$CDM results.