Consider a single light ray propagating across the universe from a source at log a = 0.5
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Consider a single light ray propagating across the universe from a source at log a = −0.5 to us. The cumulative effect of all the deflections caused by large-scale inhomogeneities makes the observed direction of this ray deviate by a small angle from the direction it would have had in the absence of the inhomogeneities. Estimate this deviation angle. Is it large enough to be observable?
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The deviation angle caused by largescale inhomogeneities in the universe can be estimated using the concept of gravitational lensing Gravitational len...View the full answer
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Related Book For 
Modern Classical Physics Optics Fluids Plasmas Elasticity Relativity And Statistical Physics
ISBN: 9780691159027
1st Edition
Authors: Kip S. Thorne, Roger D. Blandford
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