SIMBAD references

We present new observations with the Atacama Large Millimeter/submillimeter Array for a gravitationally lensed galaxy at z = 9.1, MACS1149-JD1. [O III] 88 µm emission is detected at 10σ with a spatial resolution of ∼0.3 kpc in the source plane, enabling the most distant morphokinematic study of a galaxy. The [O III] emission is distributed smoothly without any resolved clumps and shows a clear velocity gradient with ΔV_obs/2σ_tot = 0.84 ± 0.23, where ΔV_obs is the observed maximum velocity difference and σ_tot is the velocity dispersion measured in the spatially integrated line profile, suggesting a rotating system. Assuming a geometrically thin self-gravitating rotation disk model, we obtain {V}_{\mathrm{rot}}/{\sigma }_{V}={0.67}_{-0.26}^{+0.73}, where V_rot and σ_V are the rotation velocity and velocity dispersion, respectively, still consistent with rotation. The resulting disk mass of {0.65}_{-0.40}^{+1.37}\times {10}^{9}M_☉ is consistent with being associated with the stellar mass identified with a 300 Myr old stellar population independently indicated by a Balmer break in the spectral energy distribution. We conclude that the most of the dynamical mass is associated with the previously identified mature stellar population that formed at z ∼ 15.