Cosmological limits on the neutrino mass from the Ly ± forest

Rupert A.C. Croft, Wayne Hu, Romeel Davé

Research output: Contribution to journalArticle

106 Scopus citations

Abstract

The Ly α 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 < 5.5eV 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
DOIs
StatePublished - Jan 1 1999

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Cosmological limits on the neutrino mass from the Ly ± forest'. Together they form a unique fingerprint.

  • Cite this