منابع مشابه
The Gravitational Cherenkov Radiation
An example of discontinuity of the energy-momentum tensor moving at superluminal velocity is discussed. It is shown that the gravita-tional Mach cone is formed. The power spectrum of the corresponding Cherenkov radiation is evaluated.
متن کاملCherenkov Radiation in a Gravitational Wave Background
A covariant criterion for the emission of Cherenkov radiation in the field of a non-linear gravitational wave is considered in the framework of exact integrable models of particle dynamics and electromagnetic wave propagation. It is shown that vacuum interacting with curvature can give rise to Cherenkov radiation. The conically shaped spatial distribution of radiation is derived and its basic p...
متن کاملConstraining the New Aether : Gravitational Cherenkov Radiation
We study the simplest concrete theory for spontaneous Lorentz violation , the " New Aether Theory " of Jacobson and Mattingly, which is a vector-tensor gravitational theory with a fixed-modulus condition on the vector field. We show that the observation of ultra-high energy cosmic rays (which implies the absence of energy loss via various Cherenkov type processes) places constraints on the para...
متن کاملConstraining the New Aether : Gravitational Cherenkov Radiation
We study the simplest concrete theory for spontaneous Lorentz violation , the " New Aether Theory " of Jacobson and Mattingly, which is a vector-tensor gravitational theory with a fixed-modulus condition on the vector field. We show that the observation of ultra-high energy cosmic rays (which implies the absence of energy loss via various Cherenkov type processes) places constraints on the para...
متن کاملCherenkov radiation versus X-shaped localized waves.
Localized waves (LW) are nondiffracting ("soliton-like") solutions to the wave equations and are known to exist with subluminal, luminal, and superluminal peak velocities V. For mathematical and experimental reasons, those that have attracted more attention are the "X-shaped" superluminal waves. Such waves are associated with a cone, so that one may be tempted-let us confine ourselves to electr...
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ژورنال
عنوان ژورنال: Advances in Geoscience
سال: 2019
ISSN: 2424-8436
DOI: 10.18686/ag.v3i1.2009