| Surplus Solid Angle: Toward Astrophysical Test of Horava-Lifshitz Gravity (2009) | |||||||||
Abstract | |||||||||
| We consider electrostatic field of a point charge coupled to Horava-Lifshitz gravity and find an exact solution describing the space with a surplus (or deficit) solid angle. Although, theoretically in general relativity, a surplus angle is hardly to be obtained in the presence of ordinary matter with positive energy distribution, it seems natural in Horava-Lifshitz gravity. We present sudden disappearance and reappearance of a star image as an astrophysical effect of a surplus angle. We also consider matter configurations of all possible power law behaviors coupled to Horava-Lifshitz gravity and obtain a series of exact solutions.. Comment: 23 pages, 1 figure | |||||||||
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