![]() ![]() Subjects:Ğarth and Planetary Astrophysics (astro-ph.EP)Ĭite as: arXiv:1905.07556 (or arXiv:1905. Extreme Precision Astrometry is not only useful, but is essential to the future of exoplanet research. The concepts related to the operation and design of the global astrometric interferometer for astrophysics (GAIA) bring together solutions chosen for the astrometry satellite and interferometric Expand 5 SIMULATED DISPERSED FRINGES OF AN ASTROMETRIC SPACE INTERFEROMETRY MISSION D. In this paper, we introduce the concept of a stare-mode astrometricspacemission.Thetraditionally accepted mode of operation for a mapping astrometric space mission is that of a continuously scanning satellite, such as the successful Hipparcos and planned Gaia missions. Planetary systems not amenable to RV search, such as those in a “face-on” orientation, will be surveyed for the first time. High Definition Astrometry will provide a means to confirm the existence of Radial Velocity (RV) planets while, at the same time, measuring true mass, along with orbit inclination and radius, i.e., system architecture. help to determine whether the subsurface ocean is global or regional in extent. This includes Earth Analogs, thereby allowing the value of eta-Earth to be directly determined, without resort to extrapolation. Astrometry is the science of positional astronomy, which measures the. The concept is verified by simulation, in the framework of the expectations on the Gaia astrometric performance and on the data from the forthcoming CSST Optical Survey. For the first time, the realm of temperate terrestrial worlds will be explored. We present a concept for a scanning interferometer for global (wide-angle) astrometry from space. High Definition Astrometry (0.1 – 1.0 micro-arcseconds) will open a new window into neighboring planetary systems.
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