Cosmological limits on the neutrino mass from the Lyα forest

Rupert A C Croft, Wayne Hu, Romeel S Dave

Research output: Contribution to journalArticle

104 Citations (Scopus)

Abstract

The Lyα forest in quasar spectra probes scales where massive neutrinos can strongly suppress the growth of mass fluctuations. Using hydrodynamic simulations with massive neutrinos, we successfully test techniques developed to measure the mass power spectrum from the forest. A recent observational measurement in conjunction with a conservative implementation of other cosmological constraints places upper limits on the neutrino mass: mν < 5.5 eV for all values of Ωm, and mν ≲ 2.4(Ωm/0.17 - 1) eV, if 0.2 ≤ Ωm ≤ 0.5 as currently observationally favored (both 95% C.L.).

Original languageEnglish (US)
Pages (from-to)1092-1095
Number of pages4
JournalPhysical Review Letters
Volume83
Issue number6
StatePublished - Aug 9 1999
Externally publishedYes

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neutrinos
quasars
mass spectra
power spectra
hydrodynamics
probes
simulation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Cosmological limits on the neutrino mass from the Lyα forest. / Croft, Rupert A C; Hu, Wayne; Dave, Romeel S.

In: Physical Review Letters, Vol. 83, No. 6, 09.08.1999, p. 1092-1095.

Research output: Contribution to journalArticle

Croft, Rupert A C ; Hu, Wayne ; Dave, Romeel S. / Cosmological limits on the neutrino mass from the Lyα forest. In: Physical Review Letters. 1999 ; Vol. 83, No. 6. pp. 1092-1095.
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