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The Pioneer anomaly in the context of the braneworld scenario

O Bertolami and J Páramos

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We examine the Pioneer anomaly—a reported anomalous acceleration affecting the Pioneer 10/11, Galileo and Ulysses spacecraft—in the context of a braneworld scenario. We show that effects due to the radion field cannot account for the anomaly, but that a scalar field with an appropriate potential is able to explain the phenomenon. Implications and features of our solution are discussed.


PACS

04.50.-h Higher-dimensional gravity and other theories of gravity

04.20.-q Classical general relativity

11.25.Wx String and brane phenomenology

MSC

83C05 Einstein's equations (general structure, canonical formalism, Cauchy problems)

83F05 Cosmology

Subjects

Gravitation and cosmology

Particle physics and field theory

Dates

Issue 13 (7 July 2004)

Received 27 January 2004

Published 14 June 2004



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