The LARES 2 satellite, general relativity and fundamental physics
نویسندگان
چکیده
Abstract LARES 2, successfully launched on July 13, 2022, is a new generation laser-ranged satellite. an acronym for LAser RElativity Satellite. The first satellite was February 2012 with the ESA-ASI-AVIO launch vehicle VEGA. 2 injected extremely high precision onto high-altitude orbit at about 5900 km altitude VEGA C. Laser-ranged satellites have many applications, including to test Einstein’s theory of general relativity. main relativistic phenomenon that will accuracy dragging inertial frames, or frame-dragging. It also other aspects and principles fundamental physics relativity, such as weak equivalence principle foundation viable gravitational theories. Frame-dragging name Einstein himself gave in 1913 intriguing relativity which implies current mass-energy, rotation body, generate spacetime curvature. has key role energy astrophysics, e.g., waves by collision two black holes form rotating hole. Earth measured few percent combining data LARES, LAGEOS (Ciufolini et al. Eur Phys J C 79:872, 2019). thanks its injection precision, projected improve frame-dragging least order magnitude. relevant applications space geodesy geodynamics, study shape determination International Terrestrial Reference Frame (ITRF) improving center mass contributing better axis.
منابع مشابه
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ژورنال
عنوان ژورنال: European Physical Journal C
سال: 2023
ISSN: ['1434-6044', '1434-6052']
DOI: https://doi.org/10.1140/epjc/s10052-023-11230-6