The Fundamental Plane in the LEGA-C Survey: unraveling the $M/L$ variations of massive star-forming and quiescent galaxies at $z\sim 0.8$

Abstract

We explore the connection between the kinematics, structures and stellar populations of massive galaxies at $0.6<z<1.0$ using the Fundamental Plane (FP). Combining stellar kinematic data from the Large Early Galaxy Astrophysics Census (LEGA-C) survey with structural parameters measured from deep Hubble Space Telescope imaging, we obtain a sample of 1419 massive ($\log (M_{\ast }/M_{\odot })>10.5$) galaxies that span a wide range in morphology, star formation activity and environment, and therefore is representative of the massive galaxy population at $z\sim 0.8$. We find that quiescent and star-forming galaxies occupy the parameter space of the $g$-band FP differently and thus have different distributions in the dynamical mass-to-light ratio ($M_{\mathrm{dyn}}/L_g$), largely owing to differences in the stellar age and recent star formation history, and, to a lesser extent, the effects of dust attenuation. In contrast, we show that both star-forming and quiescent galaxies lie on the same mass FP at $z\sim 0.8$, with a comparable level of intrinsic scatter about the plane. We examine the variation in $M_{\mathrm{dyn}}/M_{\ast }$ through the thickness of the mass FP, finding no significant residual correlations with stellar population properties, Sérsic index, or galaxy overdensity. Our results suggest that, at fixed size and velocity dispersion, the variations in $M_{\mathrm{dyn}}/L_g$ of massive galaxies reflect an approximately equal contribution of variations in $M_{\ast }/L_g$, and variations in the dark matter fraction or initial mass function.

32 pages, 19 figures (including appendices); accepted for publication in ApJ

References in corpus (38)

• Array Programming with NumPy
• EAZY: A Fast, Public Photometric Redshift Code
• Overview of the SDSS-IV MaNGA Survey: Mapping Nearby Galaxies at Apache Point Observatory
• K-corrections and filter transformations in the ultraviolet, optical, and near infrared
• Improving the full spectrum fitting method: accurate convolution with Gauss-Hermite functions
• 3D-HST+CANDELS: The Evolution of the Galaxy Size-Mass Distribution since $z=3$
• A simple model to interpret the ultraviolet, optical and infrared emission from galaxies
• An ultra-deep near-infrared spectrum of a compact quiescent galaxy at z=2.2
• UltraVISTA: a new ultra-deep near-infrared survey in COSMOS
• Structure and star formation in galaxies out to z=3: evidence for surface density dependent evolution and upsizing
• Stellar Masses and SFRs for 1M Galaxies from SDSS and WISE
• Data analysis recipes: Fitting a model to data
• A catalogue of 2D photometric decompositions in the SDSS-DR7 spectroscopic main galaxy sample: preferred models and systematics
• Geometry of Star-Forming Galaxies from SDSS, 3D-HST and CANDELS
• Half-mass radii for ~7,000 galaxies at 1.0 < z < 2.5: most of the evolution in the mass-size relation is due to color gradients
• Galaxy And Mass Assembly: Deconstructing Bimodality - I. Red ones and blue ones
• The Star Formation Epoch of the Most Massive Early-Type Galaxies
• A Comparative Study of Density Field Estimation for Galaxies: New Insights into the Evolution of Galaxies with Environment in COSMOS out to z~3
• A massive, dead disk galaxy in the early Universe
• Cosmic Web of Galaxies in the COSMOS Field: Public Catalog and Different Quenching for Centrals and Satellites
• MOSFIRE Spectroscopy of Quiescent Galaxies at 1.5 < z < 2.5. I - Evolution of Structural and Dynamical Properties
• A calibration of the stellar mass fundamental plane at z ~ 0.5 using the micro-lensing induced flux ratio anomalies of macro-lensed quasars
• Beyond UVJ: More Efficient Selection of Quiescent Galaxies With UV / Mid-IR Fluxes
• Stellar populations and evolution of early-type cluster galaxies: Constraints from optical imaging and spectroscopy of z=0.5-0.9 galaxy clusters
• The Mass Assembly History of Spheroidal Galaxies: Did Newly-Formed Systems Arise Via Major Mergers?
• Toward Equations of Galactic Structure
• M/L and Color Evolution for A Deep Sample of M* Cluster Galaxies at z~1: The Formation Epoch and the Tilt of the Fundamental Plane
• The KMOS Cluster Survey (KCS) I: The fundamental plane and the formation ages of cluster galaxies at redshift $1.4<z<1.6$
• One Plane for All: Massive Star-Forming and Quiescent Galaxies Lie on the Same Mass Fundamental Plane at z~0 and z~0.7
• The Fundamental Plane of massive quiescent galaxies out to z~2
• Comparing PyMorph and SDSS photometry. I. Background sky and model fitting effects
• The Relation between Dynamical Mass-to-Light Ratio and Color for Massive Quiescent Galaxies out to z~2 and Comparison with Stellar Population Synthesis Models
• The Stellar Mass Fundamental Plane: The virial relation and a very thin plane for slow-rotators
• The KMOS Cluster Survey (KCS) III: fundamental plane of cluster galaxies at $z\simeq 1.80$ in JKCS 041
• High Redshift Massive Quiescent Galaxies are as Flat as Star Forming Galaxies: The Flattening of Galaxies and the Correlation with Structural Properties in CANDELS/3D-HST
• A unified scenario for the origin of spiral and elliptical galaxy structural scaling laws
• The Fundamental Plane of cluster spheroidal galaxies at z$\sim 1.3$. Evidence for mass-dependent evolution
• Tightly coupled morpho-kinematic evolution for massive star-forming and quiescent galaxies across 7 Gyr of cosmic time

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