From high - resolution spectroscopy of the star we estimate a stellar effective temperature of Teff = 6100 + / - 150 K, and from high - precision z and
B photometry of the transit we constrain the ratio of the semi-major axis and the stellar radius to be a / R = 6.03 + / - 0.13.
No known object reproduces well the properties of planets
b and c. Nevertheless, we find that the spectra and WISE
photometry of peculiar and / or young early - T dwarfs reddened by submicron grains made of corundum, iron, enstatite, or forsterite successfully reproduce the SED of these two planets.