PLANCK and WMAP constraints on generalised Hubble flow inflationary trajectories
File(s)
Published version
Author(s)
Contaldi, Carlo R
Horner, Jonathan S
Type
Journal Article
Abstract
We use the Hamilton-Jacobi formalism to constrain the space of possible single field, inflationary Hubble flow trajectories when compared to the WMAP and PLANK satellites Cosmic Microwave Background (CMB) results. This method yields posteriors on the space of Hubble Slow Roll (HSR) parameters that uniquely determine the history of the Hubble parameter during the inflating epoch. The trajectories are used to numerically determine the observable primordial power spectrum and bispectra that can then be compared to observations. Our analysis is used to infer the most likely shape of the inflaton potential V(phgr) and also yields a prediction for, ℬ, the dimensionless amplitude of the non-Gaussian bispectrum.
Date Issued
2014-08-01
Date Acceptance
2014-07-21
Citation
Journal of Cosmology and Astroparticle Physics, 2014, 2014 (8)
ISSN
1475-7516
Publisher
IOP Publishing
Journal / Book Title
Journal of Cosmology and Astroparticle Physics
Volume
2014
Issue
8
Copyright Statement
© 2014 IOP Publishing Ltd. This is an author-created, un-copyedited version of an article accepted for publication in Journal of Cosmology and Astroparticle Physics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The definitive publisher authenticated version is available online at https://dx.doi.org/10.1088/1475-7516/2014/08/050.
Sponsor
Science and Technology Facilities Council (STFC)
Science and Technology Facilities Council (STFC)
Science and Technology Facilities Council (STFC)
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000341848800050&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Grant Number
ST/J000353/1
ST/J500616/1
ST/L00044X/1
Subjects
Science & Technology
Physical Sciences
Astronomy & Astrophysics
Physics, Particles & Fields
Physics
inflation
physics of the early universe
cosmological parameters from CMBR
CMBR theory
FLUCTUATIONS
MODELS
Publication Status
Published
Article Number
050
Date Publish Online
2014-08-26