Elgaroy, O.;
Lahav, O.;
Percival, W.J.;
Peacock, J.A.;
Madgwick, D.S.;
Bridle, S.L.;
Baugh, C.M.;
... Taylor, K.; + view all
(2002)
A new upper limit on the total neutrino mass from the 2dF galaxy redshift survey.
Physical Review Letters
, 89
(6)
, Article e061301. 10.1103/PhysRevLett.89.061301.
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Abstract
We constrain fν≡Ων/Ωm, 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 fν<0.13 (at 95% confidence) for a prior of 0.1<Ωm<0.5, and assuming the scalar spectral index n=1. This translates to an upper limit on the total neutrino mass mν,tot<1.8 eV for “concordance” values of Ωm and the Hubble constant.
| Type: | Article |
|---|---|
| Title: | A new upper limit on the total neutrino mass from the 2dF galaxy redshift survey |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.89.061301 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.89.061301 |
| Language: | English |
| Additional information: | © 2002 The American Physical Society |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/9693 |
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