Phys. Rev. Lett. 83, 1092–1095 (1999)Cosmological Limits on the Neutrino Mass from the Lyα ForestReceived 25 March 1999; published in the issue dated 9 August 1999 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<5.5eV 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.). © 1999 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.83.1092
DOI:
10.1103/PhysRevLett.83.1092
PACS:
95.35.+d, 14.60.Pq, 98.62.Py, 98.62.Ra
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