Hertzsprung-Russell diagram for the candidates, along with the BT-Settl isochrones (solid lines) and the lines of constant mass (dotted lines). The isochrones correspond to the ages (1, 2, 3, 4, 5 (darker line), 10, 20, 30) Myr, from top to bottom, and the masses are given in M_⊙. The uncertainties in T_eff are 100 K, reflecting the spacing of the grid, while those in log L are comparable to or smaller than the symbol sizes.