Microwave anisotropy constraints on isocurvature baryon models

Details Microwave anisotropy constraints on isocurvature baryon models Microwave anisotropy constraints on isocurvature baryon models

Aug 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987mnras.227p..33e&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 227, Aug. 1, 1987, p. 33P-38P. NSERC-supported research

Astronomy and Astrophysics

Astronomy

77

Anisotropy, Baryons, Relic Radiation, Universe, Astronomical Models, Curvature, Thomson Scattering, Transfer Functions

Scientific paper

The authors calculate the microwave background anisotropies expected in baryon-dominated universes with power law initial entropy perturbations. If recombination of the Universe proceeds in the standard way, only models with ΩB ≡ 1 are compatible with the small angle anisotropy constraints. If the Universe remained ionized for an extended period, the constraints at θ ≡ 6° limit the initial spectral index to n > -2. A modest improvement in the anisotropy limits at small angular scales could exclude all reasonable isocurvature baryon models whatever the recombination history. The coherent scale for the linear polarization of the temperature fluctuations would provide a test of early re-ionization.

Affiliated with

Also associated with

No associations

Rating

Microwave anisotropy constraints on isocurvature baryon 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 Microwave anisotropy constraints on isocurvature baryon models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microwave anisotropy constraints on isocurvature baryon models will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1341938