Spatially Resolved Stellar Kinematics from LEGA-C:Increased Rotational Support in z~0.8 Quiescent Galaxies

Bezanson, Rachel and Wel, Arjen van der and Pacifici, Camilla and Noeske, Kai and Barišić, Ivana and Bell, Eric F. and Brammer, Gabriel B. and Calhau, Joao and Chauke, Priscilla and Dokkum, Pieter van and Franx, Marijn and Gallazzi, Anna and Houdt, Josha van and Labbé, Ivo and Maseda, Michael V. and Muños-Mateos, Juan Carlos and Muzzin, Adam and Sande, Jesse van de and Sobral, David and Straatman, Caroline and Wu, Po-Feng (2018) Spatially Resolved Stellar Kinematics from LEGA-C:Increased Rotational Support in z~0.8 Quiescent Galaxies. The Astrophysical Journal, 858 (1). ISSN 0004-637X

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Abstract

We present stellar rotation curves and velocity dispersion profiles for 104 quiescent galaxies at $z=0.6-1$ from the Large Early Galaxy Astrophysics Census (LEGA-C) spectroscopic survey. Rotation is typically probed across 10-20kpc, or to an average of 2.7${\rm R_e}$. Combined with central stellar velocity dispersions ($\sigma_0$) this provides the first determination of the dynamical state of a sample selected by a lack of star formation activity at large lookback time. The most massive galaxies ($M_{\star}>2\times10^{11}\,M_{\odot}$) generally show no or little rotation measured at 5kpc ($|V_5|/\sigma_0

Item Type:
Journal Article
Journal or Publication Title:
The Astrophysical Journal
Additional Information:
This is an author-created, un-copyedited version of an article accepted for publication/published in The Astrophysical Journal. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at doi: 10.3847/1538-4357/aabc55
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1900/1912
Subjects:
ID Code:
124491
Deposited By:
Deposited On:
12 Apr 2018 15:34
Refereed?:
Yes
Published?:
Published
Last Modified:
20 Sep 2020 04:44