Multipole anisotropy of the cosmic background radiation in density wave models

Details Multipole anisotropy of the cosmic background radiation in density wave models Multipole anisotropy of the cosmic background radiation in density wave models

Jun 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...257...17f&link_type=abstract

Astrophysical Journal, Part 1, vol. 257, June 1, 1982, p. 17-22.

Mathematics

Logic

18

Anisotropy, Background Radiation, Cosmic Rays, Cosmology, Density Wave Model, Relic Radiation, Angular Distribution, Multipoles, Radiation Distribution, Wavelengths

Scientific paper

Theoretical predictions on the anisotropy of the cosmic background radiation provided by cosmological models with long-wavelength density perturbations are investigated. The perturbative modes of the linearized theory of Lifshitz and Khalatnikov (1963) are considered and each mode is shown to give rise to a corresponding multipole in a spherical-harmonic expansion of the anisotropy pattern. Amplitudes for the anisotropy multipoles up to l equals 7 are calculated for normalized amplitudes of the corresponding multipoles in the density wave. A negative curvature of space is shown to have an unexpected bearing on higher l multipoles. It is found that in open spaces the background anisotropy is dominated by higher l multipoles in the limit of large perturbation wavelengths. Dipole and quadrupole anisotropies of comparable amplitudes arise naturally from perturbations with a size on the order of the particle horizon.

Affiliated with

Also associated with

No associations

Rating

Multipole anisotropy of the cosmic background radiation in density wave models does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Multipole anisotropy of the cosmic background radiation in density wave models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multipole anisotropy of the cosmic background radiation in density wave models will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1351484