Diffractive corrections to the cosmological redshift formula

Details Diffractive corrections to the cosmological redshift formula Diffractive corrections to the cosmological redshift formula

May 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991phrvl..66.2553h&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 66, May 20, 1991, p. 2553-2556.

Mathematics

Logic

7

Astronomical Spectroscopy, Cosmology, Red Shift, Density Distribution, Doppler Effect, Minkowski Space

Scientific paper

The exact frequency redshift are calculated for fields coupled to gravity in Robertson-Walker backgrounds. The exact redshift expression factorizes and is proportional to the naive Doppler shift times a term representing diffractive effects. These diffractive corrections can be large for field modes with wavelengths on the order of the horizon size. Implications for cosmological density perturbations are discussed.

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