v 1 1 3 A ug 2 00 6 On a recently proposed metric linear ex - tension of general relativity to explain the Pioneer anomaly
نویسنده
چکیده
Recently, Jaekel and Reynaud proposed a gravitational mechanism for the Pioneer anomaly based on a metric linear extension of general relativity which would be able to explain the anomalous acceleration experienced by the Pioneer spacecraft without contradicting either the equivalence principle or what we know about the planetary motions. In this paper we perform an independent test of such an hypothesis by showing that the planets’ orbits are, in fact, affected by the suggested mechanism as well and comparing the resulting effects with the latest observational determinations. It turns out that the predicted perihelion precessions, expressed in terms of an adjustable free parameter ζPM set equal to the value used to reproduce the magnitude of the Pioneer anomalous acceleration, are quite different from the observationally determined extra-advances of such Keplerian element for the inner planets. Conversely, the values obtained for ζPM from the determined perihelion extra-rates of the inner planets turn out to be in disagreement with the value which would be required to accommodate the Pioneer anomaly. As a consequence, the suggested explanation of gravitational origin for the Pioneer anomaly, based on the assumption that ζP is constant throughout the Solar System, must be rejected.
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v 1 2 1 A ug 2 00 6 On a recently proposed scalar - tensor - vector metric extension of general relativity to ex - plain the Pioneer anomaly
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Recently, Brownstein and Moffat proposed a gravitational mechanism to explain the Pioneer anomaly based on their scalar-tensorvector (STVG) metric theory of gravity. In this paper we show that their model, fitted to the presently available data for the anomalous Pioneer 10/11 acceleration, is in contrast with the latest observational determinations of the perihelion advances of Jupiter, Saturn ...
متن کامل01 v 4 8 J an 2 00 7 On a recently proposed scalar - tensor - vector metric extension of general relativity to ex - plain the Pioneer anomaly
Recently, Brownstein and Moffat proposed a gravitational mechanism to explain the Pioneer anomaly based on their scalar-tensorvector (STVG) metric theory of gravity. In this paper we show that their model, fitted to the presently available data for the anomalous Pioneer 10/11 acceleration, is in contrast with the latest determinations of the extra-precessions of perihelia for Jupiter, Saturn an...
متن کاملS ep 2 00 6 On a recently proposed scalar - tensor - vector metric extension of general relativity to ex - plain the Pioneer anomaly
Recently, Brownstein and Moffat proposed a gravitational mechanism to explain the Pioneer anomaly based on their scalar-tensorvector (STVG) metric theory of gravity. In this paper we show that their model, fitted to the presently available data for the anomalous Pioneer 10/11 acceleration, is in contrast with the latest observational determinations of the perihelion advances of Jupiter, Saturn ...
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Recently, Jaekel and Reynaud put forth a metric linear extension of general relativity which, in the intentions of its proponents, would be able, among other things, to provide a gravitational mechanism for explaining the Pioneer anomaly without contradicting either the equivalence principle or what we know about the planetary motions. In this paper we perform an independent test of such an hyp...
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