Elgarøy Ø, 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. New upper limit on the total neutrino mass from the 2 degree field galaxy redshift survey.
Phys Rev Lett 2002;
89:061301. [PMID:
12190573 DOI:
10.1103/physrevlett.89.061301]
[Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2002] [Indexed: 05/23/2023]
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.
Collapse