Gravitomagnetism in Massive Gravity
| Autor: | Bayram Tekin, Kezban Tasseten |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Physics
High Energy Physics - Theory Gravity (chemistry) Cosmology and Nongalactic Astrophysics (astro-ph.CO) 010308 nuclear & particles physics Hořava–Lifshitz gravity FOS: Physical sciences General Relativity and Quantum Cosmology (gr-qc) 01 natural sciences General Relativity and Quantum Cosmology Gravitation Parameterized post-Newtonian formalism Massive gravity Classical mechanics High Energy Physics - Theory (hep-th) 0103 physical sciences Gravity well Quantum gravity f(R) gravity 010303 astronomy & astrophysics Astrophysics - Cosmology and Nongalactic Astrophysics |
| Popis: | Massive gravity in the weak field limit is described by the Fierz-Pauli theory with 5 degrees of freedom in four dimensions. In this theory, we calculate the gravitomagnetic effects (potential energy) between two point-like, spinning sources that also orbit around each other in the limit where the spins and the velocities are small. Spin-spin, spin-orbit and orbit-orbit interactions in massive gravity theory have rather remarkable, discrete differences from their counterparts in General Relativity. Our computation is applicable for large distances, for example, for interaction between galaxies or galaxy clusters where massive gravity is expected to play a role. We also extend the computations to quadratic gravity theories in four dimensions and find the lowest order gravitomagnetic effects and show that at small separations quadratic gravity behaves differently than General Relativity. 12 pages, 3 figures, reference added, v2 almost matches the published version |
| Databáze: | OpenAIRE |
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