TOI-1736 c mass determination. The black line shows the mass posterior distribution obtained from RV-derived parameters and GAS-TON simulations of astrometric excess noise. The solid and dashed blue lines show the median and the ±1σ range of the distribution. The red line shows the minimum mass of M_p sin i_p = 8.09 M_Jup obtained from our RV analysis and the dotted blue line shows the 3σ upper limit of <16.54 M_Jup.