H–R diagram of known TWA members with T_eff and Luminosities from Herczeg & Hillenbrand (2014) as well as the parameter space that 2MJ1235A and 2MJ1235B may occupy. We adopted T_eff for 2MJ1235 from Herczeg & Hillenbrand (2014) and used our measurement of the flux ratio of the binary pair and parallax from Gaia (Brown et al. 2018) to calculate the luminosity range for the individual components. We plot age isochrones from Baraffe et al. (2015) at intervals of 0.5 dex. The age isochrones are labeled in log age in yr.