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The SAMI Galaxy Survey: Revisitng galaxy classification through high-order stellar kinematics

van de Sande, J; Bland-Hawthorn, Joss; Fogarty, Lisa M R; Cortese, L; D'Eugenio, Francesco; Croom, Scott M; Scott, Nicholas; Allen, James T; Brough, Sarah; Bryant, Julia J.; Cecil, Gerald; Colless, Matthew; Groves, Brent Allan; Ho, I-Ting; Leslie, Sarah; Medling, Anne; Sharp, Rob; Sweet, Sarah

Description

Recent cosmological hydrodynamical simulations suggest that integral field spectroscopy can connect the high-order stellar kinematic moments h3 (~skewness) and h4 (~kurtosis) in galaxies to their cosmological assembly history. Here, we assess these results by measuring the stellar kinematics on a sample of 315 galaxies, without a morphological selection, using two-dimensional integral field data from the SAMI Galaxy Survey. Proxies for the spin parameter (${\lambda }_{{R}_{{\rm{e}}}}$) and...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
URI: http://hdl.handle.net/1885/218515
Source: The Astrophysical Journal
DOI: 10.3847/1538-4357/835/1/104

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