Regan, Donough, Anderson, Gemma Jayne, Hull, Matthew and Seery, David (2015) Constraining Galileon inflation. Journal of Cosmology and Astroparticle Physics, 2015 (02). ISSN 1475-7516

PDF - Accepted Version Download (207kB)

Abstract

In this short paper, we present constraints on the Galileon inflationary model from the CMB bispectrum. We employ a principal-component analysis of the independent degrees of freedom constrained by data and apply this to the WMAP 9-year data to constrain the free parameters of the model. A simple Bayesian comparison establishes that support for the Galileon model from bispectrum data is at best weak.

Item Type:	Article
Schools and Departments:	School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects:	Q Science > QB Astronomy > QB0980 Cosmogony. Cosmology
Depositing User:	David Seery
Date Deposited:	15 Feb 2016 09:45
Last Modified:	15 Mar 2017 17:40
URI:	http://srodev.sussex.ac.uk/id/eprint/59641

View download statistics for this item

📧 Request an update