COBE-DMR constraints on a inflation model with non-minimal scalar field
Astrophysics
2007-05-23 v1 General Relativity and Quantum Cosmology
Abstract
We derive the power spectra of the scalar- and tensor-type structures generated in a chaotic-type inflation model based on non-minimally coupled scalar field with a self interaction. By comparing contributions of both-structures to the anisotropy of the cosmic microwave background radiation with the four-year COBE-DMR data on quadrupole anisotropy we derive constraints on the ratio of self-coupling and non-minimal coupling constants, and the expansion rate in the inflation era, Eq. (12). The requirement of successful amount of inflation further constrains the relative amount of tensor-type contribution, Eq. (16).
Keywords
Cite
@article{arxiv.astro-ph/9811069,
title = {COBE-DMR constraints on a inflation model with non-minimal scalar field},
author = {J. Hwang and H. Noh},
journal= {arXiv preprint arXiv:astro-ph/9811069},
year = {2007}
}
Comments
4 pages, no figure, To appear in Phys. Rev. Lett