When can the Planck satellite measure spectral index running?

Pahud, Cédric, Liddle, Andrew R., Mukherjee, Pia and Parkinson, David (2007) When can the Planck satellite measure spectral index running?. Monthly Notices of the Royal Astronomical Society, 381 2: 489-493. doi:10.1111/j.1365-2966.2007.12310.x


Author Pahud, Cédric
Liddle, Andrew R.
Mukherjee, Pia
Parkinson, David
Title When can the Planck satellite measure spectral index running?
Formatted title
When can the Planck satellite measure spectral index running?
Journal name Monthly Notices of the Royal Astronomical Society   Check publisher's open access policy
ISSN 0035-8711
1365-2966
Publication date 2007-10-01
Sub-type Article (original research)
DOI 10.1111/j.1365-2966.2007.12310.x
Open Access Status DOI
Volume 381
Issue 2
Start page 489
End page 493
Total pages 5
Place of publication Oxford, United Kingdom
Publisher Oxford University Press
Language eng
Abstract We use model selection forecasting to assess the ability of the Planck satellite to make a positive detection of spectral index running. We simulate Planck data for a range of assumed cosmological parameter values, and carry out a three-way Bayesian model comparison of a Harrison-Zel'dovich model, a power-law model and a model including running. We find that Planck will be able to strongly support running only if its true value satisfies |dn/d ln k| > 0.02.
Keyword cosmology : theory
Probe Wmap Observations
Model Selection
Cosmological parameters
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Mathematics and Physics
 
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Created: Mon, 28 Feb 2011, 19:46:26 EST