Weighing Neutrinos with Galaxy Surveys

Details Weighing Neutrinos with Galaxy Surveys Weighing Neutrinos with Galaxy Surveys

1997-12-04

arxiv.org/abs/astro-ph/9712057v2

Phys.Rev.Lett.80:5255-5258,1998

Astronomy and Astrophysics

Astrophysics

4 pages, Revtex, 3 ps figures included, version accepted by PRL; caveats added about scale-dependent bias; additional color de

Scientific paper

10.1103/PhysRevLett.80.5255

We show that galaxy redshift surveys sensitively probe the neutrino mass, with eV mass neutrinos suppressing power by a factor of two. The Sloan Digital Sky Survey can potentially detect $N$ nearly degenerate massive neutrino species with mass m_nu > 0.65 (Omega_m h^2/0.1 N)^{0.8} eV at better than 2sigma once microwave background experiments measure two other cosmological parameters. Significant overlap exists between this region and that implied by the LSND experiment, and even m_nu ~ 0.01-0.1 eV, as implied by the atmospheric anomaly, can affect cosmological measurements.

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