New ways in testing post-Newtonian gravity in the Solar System scenario from planetary motion analysis

Details New ways in testing post-Newtonian gravity in the Solar System scenario from planetary motion analysis New ways in testing post-Newtonian gravity in the Solar System scenario from planetary motion analysis

2004-05-10

arxiv.org/abs/gr-qc/0405053v2

A. Reimer (ed.), Quantum Gravity Research Trends, vol. 250, (Nova, New York), 2006, pp. 297-318.

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

LaTex2e, 13 pages, no figures, 4 tables. Invited paper, to appear in "Progress in General Relativity and Quantum Cosmology Res

Scientific paper

Here we explore the possibility of extending to the Solar System scenario the combined residual approach employed for the deterination of the Lense-Thirring effect in the Earth-LAGEOS satellites system. After calculating the secular gravitoelectric advance of the mean anomaly, we propose several linear combinations of the residuals of the nodes, the perihelia and the mean anomalies of some inner planets in order to measure the gravitoelectric advance, the Lense-Thirring effect and the solar quadrupole mass moment. The obtainable accuracies are comparable to those of new complex and expensive missions involving the launch of one or more spacecrafts. They are 10^-4 for the PPN parameter beta, 10^-5 for gamma, 10^-9 for the solar J2, 20-30% for the Lense-Thirring effect. In the case of the solar gravitomagnetic field, it would be the first attempt to measure its effect on the planetary motions. However, the improvements in the ephemerides of Mercury thanks to the Messenger and BepiColombo missions will map into an increasing accuracy of the proposed tests.

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