New upper limit on the total neutrino mass from the 2 Degree Field Galaxy Redshift Survey

被引：166

作者：

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

机构：

[1] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England

[2] Univ Edinburgh, Royal Observ, Inst Astron, Edinburgh EH9 3HJ, Midlothian, Scotland

[3] Univ Durham, Dept Phys, Durham DH1 3LE, England

[4] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

[5] Anglo Australian Observ, Epping, NSW 2121, Australia

[6] Australian Natl Univ, Res Sch Astron & Astrophys, Weston, ACT 2611, Australia

[7] Liverpool John Moores Univ, Astrophys Res Inst, Birkenhead L14 1LD, Merseyside, England

[8] Univ New S Wales, Dept Astrophys, Sydney, NSW 2052, Australia

[9] Univ Oxford, Dept Phys, Oxford OX1 3RH, England

[10] Univ St Andrews, Sch Phys & Astron, St Andrews KY6 9SS, Fife, Scotland

[11] CALTECH, Dept Astron, Pasadena, CA 91125 USA

[12] Univ Leeds, Dept Phys, Leeds LS2 9JT, W Yorkshire, England

[13] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.89.061301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页码：061301/1 / 061301/4

页数：4

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