Wednesday, June 6, 2012

1206.0927 (Simen Braeck et al.)

A physical interpretation of Hubble's law and the cosmological redshift
from the perspective of a static observer
   [PDF]

Simen Braeck, Oystein Elgaroy
We derive explicit and exact expressions for the physical velocity of a free particle comoving with the Hubble flow as measured by a static observer, and for the frequency shift of light emitted by a comoving source and received, again, by a static observer. The expressions make it clear that an interpretation of the redshift as a kind of Doppler effect only makes sense when the distance between the observer and the source vanishes exactly.
View original: http://arxiv.org/abs/1206.0927

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