Extended Data Fig. 5: Corner plots of posterior distribution from LCURVE model.
From: A dense 0.1-solar-mass star in a 51-minute-orbital-period eclipsing binary
A corner plot of some of the quantities derived from our final model, illustrating clean convergence in the distributions for all quantities. We would like to note that the radii are volume-averaged radii, and that R2 was not directly sampled (instead, the two masses+inclination are sampled, and because the system is fully eclipsing R2 is determined uniquely by the mass ratio and inclination). We also sampled over the surface brightness ratio J, but did not include it in these corner plots because we have five different Js (one for each filter-we avoided using a common J because doing this correctly requires atmospheric corrections in each passband, and the solutions for the other free params are largely independent of J). To ensure that using a different J for each filter was not influencing the other free params, we modelled all 5 filters independently, and found that they all converged to parameters in agreement with the combined fit.
