Peaks in the Cosmic Microwave Background: flat versus open models

Details Peaks in the Cosmic Microwave Background: flat versus open models Peaks in the Cosmic Microwave Background: flat versus open models

1996-12-11

arxiv.org/abs/astro-ph/9612114v1

Astronomy and Astrophysics

Astrophysics

13 pages latex file using aasms4.sty + 3 tables + 2 postscript figures, to appear in ApJ (March 1997)

Scientific paper

10.1086/303793

We present properties of the peaks (maxima) of the CMB anisotropies expected in flat and open CDM models. We obtain analytical expressions of several topological descriptors: mean number of maxima and the probability distribution of the gaussian curvature and the eccentricity of the peaks. These quantities are calculated as functions of the radiation power spectrum, assuming a gaussian distribution of temperature anisotropies. We present results for angular resolutions ranging from 5' to 20' (antenna FWHM), scales that are relevant for the MAP and COBRAS/SAMBA space missions and the ground-based interferometer experiments. Our analysis also includes the effects of noise. We find that the number of peaks can discriminate between standard CDM models, and that the gaussian curvature distribution provides a useful test for these various models, whereas the eccentricity distribution can not distinguish between them.

Affiliated with

Also associated with

No associations

Rating

Peaks in the Cosmic Microwave Background: flat versus open 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 Peaks in the Cosmic Microwave Background: flat versus open models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Peaks in the Cosmic Microwave Background: flat versus open models will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-533924