Cosmic magnetic field imprints on cosmic radiation

Details Cosmic magnetic field imprints on cosmic radiation Cosmic magnetic field imprints on cosmic radiation

Jan 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994phrvd..49..671m&link_type=abstract

Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 49, Issue 2, 15 January 1994, pp.671-680

Physics

15

Background Radiations, Wave Generation And Sources, Magnetohydrodynamics And Plasmas

Scientific paper

We investigate the gravitational properties of photons traveling through magnetic fields. We find that, although no gravitational radiation is emitted by a photon in vacuum, a graviton forms inside a photon moving through a magnetic field. The properties of this graviton and its back reaction on the photon are explored. It is found that, in view of this effect, magnetic fields can ``absorb'' light in a frequency-independent fashion. Hence, we conclude that a distinctive anisotropy in the cosmic radiation effective temperature would be associated with a cosmic magnetic field. Three cosmic radiation experiments based on this effect are proposed. One of them can potentially yield a strict enough bound on the primordial magnetic field intensity to prove the need for a dynamo.

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