The evolution of the Fundamental Plane to z~1: results from the LEGA-C Survey

The Fundamental Plane (FP), a tight scaling relation between galaxy size, velocity dispersion, and luminosity or stellar mass, provides strong constraints on the formation time and evolution of quiescent galaxies. However, selection biases at high redshift can affect the measured evolution of the FP significantly, and hence the inferred galaxy evolution. The LEGA-C survey has delivered the largest census of galaxy stellar kinematics at z=0.8, comprising a sample of 3000 K-band selected, massive galaxies. Combined with HST imaging, this enables a statistical view of the structural properties of galaxies at z=0.8 and their evolution to the present day. I will discuss the effects of structural and stellar population properties on the FP, and demonstrate that the FP extends to the star-forming population. I will show that, despite strong evolution in the sizes and stellar populations of galaxies, the FP is surprisingly stable to z=1, and discuss the implications for the growth of galaxies