Electromagnetic multipole radiation in background cosmologies.

Details Electromagnetic multipole radiation in background cosmologies. Electromagnetic multipole radiation in background cosmologies.

May 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994ncimb.109..499s&link_type=abstract

Nuovo Cimento B, Vol. 109, No. 5, p. 499 - 506

Statistics

Computation

Cosmology: Space-Time

Scientific paper

The authors offer a pragmatic approach for constructing radiating-point-multipole solutions to Maxwell's equations in a class of cosmological backgrounds, from the Hertzian oscillator solution. They suggest that the derivation of the latter in terms of differential forms offers certain computational advantages as well as suggesting Lie differentiation of solutions as a natural method to generate new solutions in space-times with isometries. They explicitly demonstrate these ideas by constructing the flux of instantaneous electromagnetic radiation from a harmonic quadrupole in a Robertson-Walker space-time containing flat spatial universes.

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