Elgaroy, O; Lahav, O; Percival, WJ; Peacock, JA; Madgwick, DS; Bridle, SL; Baugh, CM; ... Taylor, K; + view all Elgaroy, O; Lahav, O; Percival, WJ; Peacock, JA; Madgwick, DS; Bridle, SL; Baugh, CM; Baldry, IK; Bland-Hawthorn, J; Bridges, T; Cannon, R; Cole, S; Colless, M; Collins, C; Couch, W; Dalton, G; De Propris, R; Driver, SP; Efstathiou, GP; Ellis, RS; Frenk, CS; Glazebrook, K; Jackson, C; Lewis, I; Lumsden, S; Maddox, S; Norberg, P; Peterson, BA; Sutherland, W; Taylor, K; - view fewer (2002) New upper limit on the total neutrino mass from the 2 Degree Field Galaxy Redshift Survey. PHYS REV LETT , 89 (6) , Article 061301. 10.1103/PhysRevLett.89.061301.

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Abstract

We constrain f(nu)equivalent toOmega(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.

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