A comparison of global galaxy properties z ≥ 6 galaxy sample with lower-redshift CANDELS galaxies from P. Dimauro et al. (2018). The gray-shaded histograms show the distributions for all galaxies in our sample, while the solid black histograms represent the subset of galaxies identified with two components. The blue-dashed and red-dotted histograms show the distributions for CANDELS SF and quiescent (Q) galaxies at 0 < z < 3, respectively. (a) A distribution of stellar-mass surface density, ﹩{{\rm{\Sigma }}}_{\mathrm{Re}}﹩ calculated within circularized R_e. (b) A distribution of star formation timescales, τ_SF. (c) A distribution of star formation rate surface density, Σ_SFR.