Cherenkov Radiation in a Gravitational Wave Background
نویسندگان
چکیده
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 properties are discussed. e-mail: [email protected] e-mail: [email protected] e-mail: [email protected]
منابع مشابه
Mapping the gravitational wave background
The gravitational wave sky is expected to have isolated bright sources superimposed on a diffuse gravitational wave background. The background radiation has two components: a confusion limited background from unresolved astrophysical sources; and a cosmological component formed during the birth of the universe. A map of the gravitational wave background can be made by sweeping a gravitational w...
متن کاملThe 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 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 کاملاستفاده از شتابگر الکترونی MeV 10 برای تولید تابش چرنکوف درناحیه پرتوایکس نرم
Cherenkov radiation is generated when relativistic charged particles move in a medium with refractive index larger than unity. Although, the refractive index is generally smaller than unity in X-ray region, in the vicinity of atomic absorption edges, the refractive index may exceed unity and Cherenkov radiation can be generated in soft X-ray region with a narrow band width. In this paper, the s...
متن کامل