Constraining Galileon inflation

Journal Article · Sun Feb 01 00:00:00 EST 2015 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2015/02/015· OSTI ID:22381991

Regan, Donough; Anderson, Gemma J.; Hull, Matthew; Seery, David ^[1]

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1. 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

Related Subjects

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COMPARATIVE EVALUATIONS
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