Constraining Galileon inflation
Journal Article
·
· Journal of Cosmology and Astroparticle Physics
- Astronomy Centre, University of Sussex, Falmer, Brighton BN1 9QH (United Kingdom)
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.
- OSTI ID:
- 22381991
- Journal Information:
- Journal of Cosmology and Astroparticle Physics, Vol. 2015, Issue 02; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
- Country of Publication:
- United States
- Language:
- English
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