Gravitomagnetic effects in Kerr-de Sitter space-time
Abstract
We explicitly worked out the orbital effects induced on the trajectory of a test particle by the the weak-field approximation of the Kerr-de Sitter metric. It results that the node, the pericentre and the mean anomaly undergo secular precessions proportional to k, which is a measure of the non linearity of the theory. We used such theoretical predictions and the latest observational determinations of the non-standard precessions of the perihelia of the inner planets of the Solar System to put a bound on k getting k <= 10-29 m-2. The node rate of the LAGEOS Earth's satellite yields k <= 10-26 m-2. The periastron precession of the double pulsar PSR J0737-3039A/B allows to obtain k <= 3 10-21 m-2. Interpreting k as a cosmological constant , it turns out that such constraints are weaker than those obtained from the Schwarzschild-de Sitter metric.