| Literature DB >> 12190573 |
Ø Elgarøy1, O Lahav, W J Percival, J A Peacock, D S Madgwick, S L Bridle, C M Baugh, I K Baldry, J Bland-Hawthorn, T Bridges, R Cannon, S Cole, M Colless, C Collins, W Couch, G Dalton, R De Propris, S P Driver, G P Efstathiou, R S Ellis, C S Frenk, K Glazebrook, C Jackson, I Lewis, S Lumsden, S Maddox, P Norberg, B A Peterson, W Sutherland, K Taylor.
Abstract
We constrain f(nu) identical with Omega(nu)/Omega(m), the fractional contribution of neutrinos to the total mass density in the Universe, by comparing the power spectrum of fluctuations derived from the 2 Degree Field Galaxy Redshift Survey with power spectra for models with four components: baryons, cold dark matter, massive neutrinos, and a cosmological constant. Adding constraints from independent cosmological probes we find f(nu)<0.13 (at 95% confidence) for a prior of 0.1<Omega(m)<0.5, and assuming the scalar spectral index n=1. This translates to an upper limit on the total neutrino mass m(nu,tot)<1.8 eV for "concordance" values of Omega(m) and the Hubble constant.Year: 2002 PMID： 12190573 DOI： 10.1103/PhysRevLett.89.061301
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161