Physics
Scientific paper
Nov 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phrvl..63.2220w&link_type=abstract
Physical Review Letters (ISSN 0031-9007), vol. 63, Nov. 13, 1989, p. 2220-2223. Research supported by NSF and U.S. Army.
Physics
49
Doppler Effect, Frequency Shift, Incident Radiation, Line Spectra, Radiation Spectra, Dirac Equation, Electromagnetic Scattering, Fourier Transformation, Quasars
Scientific paper
The question is examined whether there may be scattering media which could generate spectral frequency shifts in radiation from sources that are at rest relative to the observer and yet would imitate Doppler shifts. Scattering kernels of media whose physical properties fluctuate randomly in both space and time are presented which achieve this to a good approximation. The frequency shifts produced in this manner are not necessarily small. The results might be of particular interest in connection with the long-standing controversy about the origin of some discrepancies observed in the spectra of quasars.
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