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The Kinematics of Massive Quiescent Galaxies at 1.4 < z < 2.1: Dark Matter Fractions, IMF Variation, and the Relation to Local Early-type Galaxies

Mendel, Trevor; Beifiori, Alessandra; Saglia, R P; Bender, Ralf; Brammer, Gabriel B.; Chan, Jeffrey; Forster Schreiber, Natascha M; Fossati, Matteo; Galametz, Audrey; Momcheva, Ivelina; Nelson, Erica J.; Wilman, David J.; Wuyts, Stijn


We study the dynamical properties of massive quiescent galaxies at 1.4 <z <2.1 using deep Hubble Space Telescope WFC3/F160W imaging and a combination of literature stellar velocity dispersion measurements and new near-infrared spectra obtained using the K-band Multi Object Spectrograph(KMOS) on the ESO Very Large Telescope. We use these data to show that the typical dynamical-to-stellar mass ratio has increased by∼0.2 dex from z = 2 to the present day, and we investigate this evolution in the...[Show more]

CollectionsANU Research Publications
Date published: 2020
Type: Journal article
Source: The Astrophysical Journal
DOI: 10.3847/1538-4357/ab9ffc
Access Rights: Open Access


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