The H{alpha} rotation curve of M33

As part of a long-term project to revisit the kinematics and dynamics of the large disc galaxies of the Local Group, we present the first deep, wide-field (~42arcmin x 56arcmin)...作为重新审视本星系群（Local Group）大质量盘状星系运动学（kinematics）与动力学（dynamics）的长期研究项目的一部分，我们在此呈现首个深场宽视场（视场范围约42角分×56角分）……