Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-01-12
Phys.Rev.D76:023503,2007
Astronomy and Astrophysics
Astrophysics
12 pages, 8 figures
Scientific paper
10.1103/PhysRevD.76.023503
We revisit the problem of constraining steps in the inflationary potential with cosmological data. We argue that a step in the inflationary potential produces qualitatively similar oscillations in the primordial power spectrum, independently of the details of the inflationary model. We propose a phenomenological description of these oscillations and constrain these features using a selection of cosmological data including the baryonic peak data from the correlation function of luminous red galaxies in the Sloan Digital Sky Survey. Our results show that degeneracies of the oscillation with standard cosmological parameters are virtually non-existent. The inclusion of new data severely tightens the constraints on the parameter space of oscillation parameters with respect to older work. This confirms that extensions to the simplest inflationary models can be successfully constrained using cosmological data.
Covi Laura
Hamann Jan
Melchiorri Alessandro
Slosar Anze
No associations
LandOfFree
New Constraints on Oscillations in the Primordial Spectrum of Inflationary Perturbations 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 New Constraints on Oscillations in the Primordial Spectrum of Inflationary Perturbations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New Constraints on Oscillations in the Primordial Spectrum of Inflationary Perturbations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-217873