Solar System Constraints on the Dvali-Gabadadze-Porrati Braneworld Theory of Gravity
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منابع مشابه
On the effects of the Dvali-Gabadadze-Porrati braneworld gravity on the orbital motion of a test particle
In this paper we explicitly work out the secular perturbations induced on all the Keplerian orbital elements of a test body to order O(e2) in the eccentricity e by the weak-field long-range modifications of the usual Newton-Einstein gravity due to the Dvali-Gabadadze-Porrati (DGP) braneworld model. Both the Gauss and the Lagrange perturbative schemes are used. It turns out that the argument of ...
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In this letter we work out the secular precession of the spin of a gyroscope in geodesic motion around a central mass in the framework of the Dvali-Gabadadze-Porrati multidimensional gravity model. Such an effect, which depends on the mass of the central body and on the orbit radius of the gyroscope, contrary to the precessions of the orbital elements of the orbit of a test body, is far too sma...
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An unexpected secular increase of the Astronomical Unit, the length scale of the Solar System, has recently been reported by three different research groups (Krasinsky and Brumberg, Pitjeva, Standish). The latest JPL measurements amount to 7±2 m cy. At present, there are no explanations able to accommodate such an observed phenomenon, neither in the realm of classical physics nor in the usual f...
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According to the braneworld model of gravity by Dvali, Gabadadze and Porrati, our Universe is a four-dimensional space-time brane embedded in a larger, infinite five-dimensional bulk space. Contrary to the other forces constrained to remain on the brane, gravity is able to explore the entire bulk getting substantially modified at large distances. This model has not only cosmological consequence...
متن کاملA comment on the possibility of testing the Dvali-Gabadadze-Porrati gravity model with the outer planets of the Solar System
The multidimensional braneworld gravity model by Dvali, Gabadadze and Porrati was primarily put forth to explain the observed acceleration of the expansion of the Universe without resorting to dark energy. One of the most intriguing features of such a model is that it also predicts small effects on the orbital motion of test particles which could be tested in such a way that local measurements ...
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تاریخ انتشار 2008