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General relativistic observable for gravitational astrometry in the context of the Gaia mission and beyond

Geralico, Andrea; Lattanzi, Mario G.; Crosta, Mariateresa +1 more

With the launch of the Gaia mission, general relativity (GR) is now at the very core of astrometry. Given the high level of accuracy of the measurements, the development of a suitable relativistic model for carrying out the correct data processing and analysis has become a critical necessity; its primary goal is to have a consistent set of stellar…