The investigation of low frequency dilaton generation

Abstract

The electromagnetic source of dilaton is a first invariant of the electromagnetic field tensor. For electromagnetic waves, this invariant can be non zero only in the near zone. Pulsars and magnetars are natural sources of this type. We calculated the generation of dilatons by coherent electromagnetic field of rotating magnetic dipole moment of pulsars and magnetars. It is shown that the radiation of dilaton waves occurs at the two frequencies: the rotation frequency ω of the magnetic dipole moment of the neutron star and the twice frequency.The generation of dilaton at frequency ω is maximal in the case when the angle between the magnetic dipole moment and the axis of its rotation is π/4. If this angle is π/2, then dilaton radiation at frequency ω does not occur. The generation of dilaton at frequency 2ω is maximal in the case when the angle between the magnetic dipole and the axis of its rotation is π/2.Angular distribution of radiation of dilatons having a frequency of ω, has a maximum along conic surfaces θ = π/4. Angular distribution of radiation of dilatons having a frequency of 2ω, has a maximum in the plane which is perpendicular to the axis of rotation (θ = π/2).