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The Evolution and Origin of Ionized Gas Velocity Dispersion from z ~ 2.6 to z ~ 0.6 with KMOS3D

Übler, H.; Genzel, R; Wisnioski, Emily; Förster Schreiber, Natascha M F; Shimizu, T; Price, S. H.; Tacconi, L J; Belli, S.; Wilman, David J; Fossati, M.; Mendel, Jon; Davies, Roger L


We present the 0.6 < z < 2.6 evolution of the ionized gas velocity dispersion in 175 star-forming disk galaxies based on data from the full KMOS3D integral field spectroscopic survey. In a forward-modeling Bayesian framework including instrumental effects and beam-smearing, we fit simultaneously the observed galaxy velocity and velocity dispersion along the kinematic major axis to derive the intrinsic velocity dispersion σ0. We find a reduction of the average intrinsic velocity dispersion...[Show more]

CollectionsANU Research Publications
Date published: 2019
Type: Journal article
Source: The Astrophysical Journal
DOI: 10.3847/1538-4357/ab27cc


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