Dilaton Signatures in the Electromagnetic Spectra of Stars

Details Dilaton Signatures in the Electromagnetic Spectra of Stars Dilaton Signatures in the Electromagnetic Spectra of Stars

Jan 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004lbeh.conf..128c&link_type=abstract

THE LAUNCHING OF LA BELLE EPOQUE OF HIGH ENERGY PHYSICS AND COSMOLOGY A Festschrift for Paul Frampton in His 60th Year and Memor

Physics

High Energy Physics

Scientific paper

We study the propagation of classical electromagnetic waves on the simplest four-dimensional spherically symmetric metric with a dilaton background field. Solutions to the relevant equations are obtained perturbatively in a parameter which measures the strength of the dilaton field (hence parameterizes the departure from Schwarzschild geometry). The loss of energy from outgoing modes is estimated as a back-scattering process against the dilaton background, which would affect the luminosity of stars with a dilaton field. The radiation emitted by a freely falling point-like source on such a background is also studied by numerical methods.

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