Constraining Galileon inflation

Regan, Donough, Anderson, Gemma Jayne, Hull, Matthew and Seery, David (2015) Constraining Galileon inflation. Journal of Cosmology and Astroparticle Physics, 2015 (02). a015. ISSN 1475-7516

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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: 16 Aug 2019 11:00

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Project NameSussex Project NumberFunderFunder Ref
Additional AGP funding - supplementary to Sussex Consolidated Grant ST/L000652/1UnsetSTFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCILUnset
Precision inflationG0918ERCUnset