Note on the robustness of the Neutrino Mass Bounds from cosmology

H. Brandenberger, Robert and Mazumdar, Anupam and Yamaguchi, Masahide (2004) Note on the robustness of the Neutrino Mass Bounds from cosmology. Physical Review D, 69 (8). ISSN 1550-7998

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Abstract

The recent high precision maps of cosmic microwave anisotropies combined with measurements of the galaxy power spectrum from new large-scale redshift surveys have allowed stringent bounds on the sum of the neutrino masses to be placed. The past analyses, however, have implicitly assumed that the spectrum of primordial density fluctuations is adiabatic and coherent, as predicted in the simplest models of inflation. In this paper, we show that the limits hold even if the assumption on the primordial power spectrum is relaxed to allow for a contribution of nonadiabatic, incoherent fluctuations such as would be predicted by topological defects.

Item Type: Journal Article
Journal or Publication Title: Physical Review D
Additional Information: © 2004 The American Physical Society
Departments: Faculty of Science and Technology > Physics
ID Code: 63450
Deposited By: ep_importer_pure
Deposited On: 01 May 2013 13:48
Refereed?: Yes
Published?: Published
Last Modified: 10 Jun 2019 23:34
URI: https://eprints.lancs.ac.uk/id/eprint/63450

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