Doppler Peaks in the Angular Power Spectrum of the Cosmic Microwave Background: A Fingerprint of Topological Defects

Details Doppler Peaks in the Angular Power Spectrum of the Cosmic Microwave Background: A Fingerprint of Topological Defects Doppler Peaks in the Angular Power Spectrum of the Cosmic Microwave Background: A Fingerprint of Topological Defects

1995-07-11

arxiv.org/abs/astro-ph/9507035v2

Phys.Rev.Lett. 76 (1996) 579-582

Astronomy and Astrophysics

Astrophysics

10pp, LaTeX, 2 PostScript figures included. Final version to appear in Phys. Rev. Letters

Scientific paper

10.1103/PhysRevLett.76.579

The Doppler peaks (Sacharov peaks) in the angular power spectrum of the cosmic microwave background anisotropies, are mainly due to coherent oscillations in the baryon radiation plasma before recombination. Here we present a calculation of the Doppler peaks for perturbations induced by global textures and cold dark matter. We find that the height of the first Doppler peak is smaller than in standard cold dark matter models, and that its position is shifted to $\ell\sim 350$. We believe that our analysis can be easily extended to other types of global topological defects and general global scalar fields.

Affiliated with

Also associated with

No associations

Rating

Doppler Peaks in the Angular Power Spectrum of the Cosmic Microwave Background: A Fingerprint of Topological Defects 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 Doppler Peaks in the Angular Power Spectrum of the Cosmic Microwave Background: A Fingerprint of Topological Defects, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Doppler Peaks in the Angular Power Spectrum of the Cosmic Microwave Background: A Fingerprint of Topological Defects will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-647275