Constraining Galileon inflation

Donough Regan, Gemma J. Anderson, Matthew Hull, David Seery

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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.
Original languageEnglish
Article number015
JournalJournal of Cosmology and Astroparticle Physics
Volume2015
Issue number2
DOIs
Publication statusPublished - 11 Feb 2015

Keywords

  • CMBR theory
  • inflation
  • non-gaussianity
  • RCUK
  • STFC
  • ST/L000652/1

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