A new approach to the sachs-wolfe effect

J.T. Mendonca, R. Bingham, Charle H.T. Wang

Research output: Contribution to journalArticle

Abstract

We present a new approach to the Sachs-Wolfe effect, which is based on the dynamics of photons in a space and time-varying gravitational field. We consider the influence of plasma dispersion effects on photon propagation, and establish the limits of validity of the usual results of the standard cosmological approach, for the large scale temperature anisotropies of the cosmic microwave background. New dynamical contributions to the integrated Sachs-Wolfe effect are also discussed.
Original languageEnglish
JournalClassical and Quantum Gravity
Volume25
Issue number9
DOIs
Publication statusPublished - 7 May 2008

Fingerprint

plasma diffusion
temperature scales
photons
gravitational fields
microwaves
anisotropy
propagation

Keywords

  • relativistic ionization fronts
  • photon acceleration
  • microwave
  • model
  • maps

Cite this

Mendonca, J.T. ; Bingham, R. ; Wang, Charle H.T. / A new approach to the sachs-wolfe effect. In: Classical and Quantum Gravity. 2008 ; Vol. 25, No. 9.
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A new approach to the sachs-wolfe effect. / Mendonca, J.T.; Bingham, R.; Wang, Charle H.T.

In: Classical and Quantum Gravity, Vol. 25, No. 9, 07.05.2008.

Research output: Contribution to journalArticle

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AU - Mendonca, J.T.

AU - Bingham, R.

AU - Wang, Charle H.T.

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AB - We present a new approach to the Sachs-Wolfe effect, which is based on the dynamics of photons in a space and time-varying gravitational field. We consider the influence of plasma dispersion effects on photon propagation, and establish the limits of validity of the usual results of the standard cosmological approach, for the large scale temperature anisotropies of the cosmic microwave background. New dynamical contributions to the integrated Sachs-Wolfe effect are also discussed.

KW - relativistic ionization fronts

KW - photon acceleration

KW - microwave

KW - model

KW - maps

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JO - Classical and Quantum Gravity

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