The flyby anomaly: A case for strong gravitomagnetism? |
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Authors: | L Acedo |
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Institution: | Instituto Universitario de Matemática Multidisciplinar, Universitat Politècnica de València, Building 8G, 2o Floor, Camino de Vera, 46022 Valencia, Spain |
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Abstract: | In the last two decades an anomalous variation in the asymptotic velocity of spacecraft performing a flyby manoeuvre around Earth has been discovered through careful Doppler tracking and orbital analysis. No viable hypothesis for a conventional explanation of this effect has been proposed and its origin remains unexplained. In this paper we discuss a strong transversal component of the gravitomagnetic field as a possible source of the flyby anomaly. We show that the perturbations induced by such a field could fit the anomalies both in sign and order of magnitude. But, although the secular contributions to the Gravity Probe B experimental results and the Lense–Thirring effect in geodynamics satellites can be made null, the detailed orbital evolution is easily in conflict with such an enhanced gravitomagnetic effect. |
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Keywords: | Flyby anomaly Extended general relativity Celestial mechanics perturbations Gravitomagnetism |
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