The central dark matter fraction of massive early-type galaxies

Abstract

Dark matter (DM) is predicted to be the dominant mass component in galaxies. In the central region of Early-type galaxies it is expected to account for a large amount of the total mass, although the stellar mass should still represent the majority of the mass budget, depending on the stellar Initial Mass Function (IMF). We discuss latest results on the DM fraction and mean DM density for local galaxies and explore their evolution with redshifts in the last 8 Gyr of the cosmic history. We compare these results with expectations from the $\Lambda$CDM model, and discuss the the role of the IMF and galaxy model, through the central total mass density slope. We finally present future perspectives offered by next generation instruments/surveys (Rubin/LSST, Euclid, CSST, WEAVE, 4MOST, DESI), that will provide the unique chance to measure the DM evolution with time for an unprecedented number of galaxies and constrain their evolutionary scenario.

29 pages, 5 figures, accepted for publication on Frontiers. arXiv admin note: text overlap with arXiv:1709.03542

References in corpus (29)

• Too big to fail? The puzzling darkness of massive Milky Way subhaloes
• The DESI Experiment Part I: Science,Targeting, and Survey Design
• The Kinematics of the Ultra-Faint Milky Way Satellites: Solving the Missing Satellite Problem
• Concentration, Spin and Shape of Dark Matter Haloes as a Function of the Cosmological Model: WMAP1, WMAP3 and WMAP5 results
• A systematic variation of the stellar initial mass function in early-type galaxies
• The Evolution of Galaxy Structure over Cosmic Time
• Size evolution of the most massive galaxies at 1.7<z<3 from GOODS NICMOS survey imaging
• The Structure & Dynamics of Massive Early-type Galaxies: On Homology, Isothermality and Isotropy inside one Effective Radius
• Towards a Concordant Model of Halo Occupation Statistics
• The dramatic size evolution of elliptical galaxies and the quasar feedback
• Radial variations in the stellar initial mass function of early-type galaxies
• Curvature in the scaling relations of early-type galaxies
• Dissipationless Mergers of Elliptical Galaxies and the Evolution of the Fundamental Plane
• The SINFONI Nearby Elliptical Lens Locator Survey: Discovery of two new low-redshift strong lenses and implications for the initial mass function in giant early-type galaxies
• LinKS: Discovering galaxy-scale strong lenses in the Kilo-Degree Survey using Convolutional Neural Networks
• The Sloan Lens ACS Survey. XII. Extending Strong Lensing to Lower Masses
• 2DPHOT: A Multi-purpose Environment for the Two-dimensional Analysis of Wide-field Images
• Systematic variations of central mass density slopes in early-type galaxies
• Connection between dynamically derived IMF normalisation and stellar population parameters
• Evolution of central dark matter of early-type galaxies up to z ~ 0.8
• Redshift evolution of the dynamical properties of massive galaxies from SDSS-III/BOSS
• The last 6 Gyr of dark matter assembly in massive galaxies from the Kilo Degree Survey
• A few StePS forward in unveiling the complexity of galaxy evolution: light-weighted stellar ages of intermediate redshift galaxies with WEAVE
• The Optical Colors of Giant Elliptical Galaxies and their Metal-Rich Globular Clusters Indicate a Bottom-Heavy Initial Mass Function
• Origin of the Golden Mass of Galaxies and Black Holes
• The density of dark matter haloes of early-type galaxies in low-density environments
• Dark matter inside early-type galaxies as function of mass and redshift
• The quantity of dark matter in early-type galaxies and its relation to the environment
• Dynamical and gravitational lensing properties of a new phenomenological model of elliptical galaxies

Cited by in corpus (8)

• The massive relic galaxy NGC 1277 is dark matter deficient. From dynamical models of integral-field stellar kinematics out to five effective radii
• Galaxy morphoto-Z with neural Networks (GaZNets). I. Optimized accuracy and outlier fraction from Imaging and Photometry
• Baryonic properties of nearby galaxies across the stellar-to-total dynamical mass relation
• Dark matter cores in massive high-$z$ galaxies formed by baryonic clumps
• Total and dark mass from observations of galaxy centers with Machine Learning
• Evolution of massive quiescent galaxies via envelope accretion
• Late growth of early-type galaxies in low-z massive clusters
• The catalogue of virtual early-type galaxies from IllustrisTNG: validation and real observation consistency