Astrometry in the Galactic Center

We present significantly improved proper motion measurements of the Milky Way's central stellar cluster. These improvements are made possible by refining our astrometric...本研究呈现了银河系中心恒星团自行（proper motion）测量结果的显著优化。上述优化的实现，得益于我们对天体测量学相关流程的精细化改进。