Fluctuations of the microwave background radiation on large and intermediate angular scales

Details Fluctuations of the microwave background radiation on large and intermediate angular scales Fluctuations of the microwave background radiation on large and intermediate angular scales

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...378....1a&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 378, Sept. 1, 1991, p. 1-5. Research supported by Instituto de Astrofisica

Statistics

Computation

10

Galactic Evolution, Relic Radiation, Computational Astrophysics, Dark Matter, Doppler Effect, Radiation Distribution, Thomson Scattering

Scientific paper

The microwave background anisotropies are estimated for different types of spectra of initial perturbations. Results are presented for multipoles from l = 2 (the quadrupole) to l = 100. The Sachs-Wolfe and Doppler effects are taken into account, but the recombination is treated as instantaneous, which is a reasonable approximation for multipoles l less than 100 (theta greater than 2 deg). Measurements of Delta T/T anisotropies on angular scales (theta = 2-3 deg and larger are necessary for discrimination between different inflationary models, which predict a variety of shapes for the spectrum of initial fluctuations.

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