The Stellar Mass Fundamental Plane and Compact Quiescent Galaxies at z < 0.6

Abstract

We examine the evolution of the relation between stellar mass surface density, velocity dispersion and half-light radius$-$the stellar mass fundamental plane$-$for quiescent galaxies at $z<0.6$. We measure the local relation from galaxies in the Sloan Digital Sky Survey and the intermediate redshift relation from $\sim 500$ quiescent galaxies with stellar masses $10\lesssim \log (M_{\ast }/M_{\odot })\lesssim 11.5$. Nearly half of the quiescent galaxies in our intermediate redshift sample are compact. After accounting for important selection and systematic effects, the velocity dispersion distribution of galaxies at intermediate redshifts is similar to galaxies in the local universe. Galaxies at $z<0.6$ appear to be smaller ($\lesssim 0.1$ dex) than galaxies in the local sample. The orientation of the stellar mass fundamental plane is independent of redshift for massive quiescent galaxies at $z<0.6$ and the zero-point evolves by $\sim 0.04$ dex. Compact quiescent galaxies fall on the same relation as the extended objects. We confirm that compact quiescent galaxies are the tail of the size and mass distribution of the normal quiescent galaxy population.

12 pages, 8 figures. Updated to accepted version to appear in ApJ

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• Velocity Dispersion, Size, Sérsic Index and $D_{n}4000$: The Scaling of Stellar Mass with Dynamical Mass for Quiescent Galaxies
• Cluster and field elliptical galaxies at z~1.3. The marginal role of the environment and the relevance of the galaxy central regions
• Stellar Velocity Dispersion: Linking Quiescent Galaxies to their Dark Matter Halos
• Quiescent Galaxy Size and Spectroscopic Evolution: Combining HSC Imaging and Hectospec Spectroscopy
• The Fundamental Plane in the LEGA-C Survey: unraveling the $M/L$ variations of massive star-forming and quiescent galaxies at $z\sim 0.8$
• The Fine Line Between Normal and Starburst Galaxies
• The cosmic evolution of the stellar mass$-$velocity dispersion relation of early-type galaxies
• Separating Galaxies from the Cluster Dark Matter Halo in Abell 611
• Size and Spectroscopic Evolution of HectoMAP Quiescent Galaxies
• The weak dependence of velocity dispersion on disk fractions, mass-to-light ratio and redshift: Implications for galaxy and black hole evolution
• Tightly coupled morpho-kinematic evolution for massive star-forming and quiescent galaxies across 7 Gyr of cosmic time
• Inferences on relations between distant supermassive black holes and their hosts complemented by the galaxy fundamental plane
• Quiescent Galaxy Size, Velocity Dispersion, and Dynamical Mass Evolution