A planet's gravity assist as a powerful amplifier of small physical effects in the Solar system
| Autor: | Alexander P. Yefremov, Alexandra A. Vorobyeva |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Physics
020301 aerospace & aeronautics Solar System biology business.industry Numerical analysis Amplifier Aerospace Engineering Venus 02 engineering and technology biology.organism_classification 01 natural sciences 0203 mechanical engineering Deflection (physics) Planet Physics::Space Physics 0103 physical sciences Gravity assist Astrophysics::Earth and Planetary Astrophysics Aerospace engineering Impact parameter business 010303 astronomy & astrophysics |
| Zdroj: | Acta Astronautica. 180:205-210 |
| ISSN: | 0094-5765 |
| DOI: | 10.1016/j.actaastro.2020.12.029 |
| Popis: | A planetary model simulating the Sun, Venus, and Earth is constructed with the possibility of “Venus” to render a gravity assist to a ballistic space probe sent from the Earth's orbit. Thorough analytical and numerical analysis shows that a shift of the probe's impact parameter (IP) entails a noticeable deflection of the probe at the final point back on the Earth's orbit. For a relatively short IP, the “Venus-GA” acts as a powerful amplifier (up to 105 times), making it possible to detect changes in the probe's IP that are caused by different physical reasons. This finding prompted Solar system experiments to measure very small physical effects, e.g., to check the actuality of gravity theories. |
| Databáze: | OpenAIRE |
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