Statistics – Computation
Scientific paper
Feb 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...403..471c&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 403, no. 2, p. 471-475.
Statistics
Computation
31
Gravitational Lenses, Microwaves, Relic Radiation, Anisotropy, Computational Astrophysics, Density Distribution
Scientific paper
We present calculations of the effect of the gravitational lensing of the cosmic microwave photons, produced by linear density perturbations, on the anisotropies of the cosmic microwave background for several popular cosmological scenarios. The results is an appreciable amplification of the order of 20 percent for Delta-T/T in present experiments of several arcminute scales, whereas previous work dealing with nonlinear density fluctuations find a negligible amplification. On smaller scales of a few arcminutes (less than 3 arcmin) the amplification can be even higher than 100 percent for the same scenarios.
Cayón Laura
Luis Sanz José
Martinez-Gonzalez Enrique
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