Slow-roll inflation and CMB anisotropy data

Details Slow-roll inflation and CMB anisotropy data Slow-roll inflation and CMB anisotropy data

2000-06-27

arxiv.org/abs/astro-ph/0006392v2

Astrophys.J. 543 (2000) L99-L102

Astronomy and Astrophysics

Astrophysics

6 pages, 4 figures, minor changes to match the published version

Scientific paper

10.1086/317275

We emphasize that the estimation of cosmological parameters from cosmic microwave background (CMB) anisotropy data, such as the recent high resolution maps from BOOMERanG and MAXIMA-1, requires assumptions about the primordial spectra. The latter are predicted from inflation. The physically best-motivated scenario is that of slow-roll inflation. However, very often, the unphysical power-law inflation scenario is (implicitly) assumed in the CMB data analysis. We show that the predicted multipole moments differ significantly in both cases. We identify several misconceptions present in the literature (and in the way inflationary relations are often combined in popular numerical codes). For example, we do not believe that, generically, inflation predicts the relation n_S - 1 = n_T for the spectral indices of scalar and tensor perturbations or that gravitational waves are negligible. We calculate the CMB multipole moments for various values of the slow-roll parameters and demonstrate that an important part of the space of parameters (n_S, n_T) has been overlooked in the CMB data analysis so far.

Affiliated with

Also associated with

No associations

Rating

Slow-roll inflation and CMB anisotropy data 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 Slow-roll inflation and CMB anisotropy data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Slow-roll inflation and CMB anisotropy data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-723409