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Bayesian Joint Estimation of Non-Gaussianity and the Power Spectrum

Published online by Cambridge University Press:  26 May 2016

Graça Rocha ,
João Magueijo ,
Mike Hobson  and
Anthony Lasenby
Graça Rocha
Affiliation:
1CAUP, Rua das Estrelas s/n, 4150-762 Porto, Portugal 2Dept. of Physics, University of Oxford, Nuclear & Astrophysics Laboratory, Keble Road, Oxford, OX1 3RH, UK
João Magueijo
Affiliation:
3Theoretical Physics, The Blackett Laboratory, Imperial College, Prince Consort Road., London, SW7 2BZ, UK
Mike Hobson
Affiliation:
4Astrophysics Group, Cavendish Laboratory, Madingley Road, Cambridge, CB3 0HE, UK
Anthony Lasenby
Affiliation:
4Astrophysics Group, Cavendish Laboratory, Madingley Road, Cambridge, CB3 0HE, UK

Abstract

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This paper gives a summary of our rigorous, non-perturbative, Bayesian framework which enables one jointly to test Gaussianity and estimate the power spectrum of CMB anisotropies. A detailed and thorough presentation of this new technique has been given in Rocha et al. 2000. There we apply our method to Very Small Array (VSA) simulations based on signal Gaussianity, showing that out algorithm is indeed not biased.

Type
Part XII: Poster Papers
Information
Symposium - International Astronomical Union , Volume 201: New Cosmological Data and the Values of the Fundamental Parameters , 2005 , pp. 508 - 509
Copyright
Copyright © Astronomical Society of the Pacific 2005 

References

Contaldi, C., Bean, R., Magueijo, J., 1999, Phys. Lett., B468, 189.CrossRefGoogle Scholar
Rocha, G., Magueijo, J., Hobson, M., Lasenby, A., 2000, astro-ph/0008070.Google Scholar