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): 60. ISSN 0004-637X
1804.02402v1.pdf - Accepted Version
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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