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About

Jonathan Antognini is a key figure in astronomical instrumentation, specializing in the development of advanced fiber-optic positioning systems for next-generation ground-based telescopes. His most notable contribution is his work on the Multi-Object Optical and Near-infrared Spectrograph (MOONS), a powerful instrument for the Very Large Telescope (VLT). Antognini played a central role in implementing and validating the metrology system for MOONS, which precisely controls 1,000 optical fibers mounted on robotic fiber positioning units (FPUs). These two-degree-of-freedom robot arms are critical for achieving homogeneous coverage across the VLT’s 500 square arcminute field of view, enabling simultaneous spectroscopic observations of thousands of celestial objects. His 2016 paper detailing this system, cited 6 times, documents the engineering breakthroughs that allow MOONS to efficiently survey galaxies, stars, and quasars. By solving the complex challenge of positioning fibers with micron-level accuracy over a wide field, Antognini’s work directly supports large-scale surveys of the Milky Way and beyond. His contributions exemplify the meticulous engineering required to transform ambitious astronomical visions into operational reality, making him an essential contributor to the infrastructure driving modern observational astrophysics.