Cosmology with High-redshift Galaxy Survey: Neutrino Mass and Inflation

Details Cosmology with High-redshift Galaxy Survey: Neutrino Mass and Inflation Cosmology with High-redshift Galaxy Survey: Neutrino Mass and Inflation

2005-12-15

arxiv.org/abs/astro-ph/0512374v3

Phys.Rev.D73:083520,2006

Astronomy and Astrophysics

Astrophysics

23 pages, 8 figures, to appear in PRD. Added Figures 5 and 8 and Table 7

Scientific paper

10.1103/PhysRevD.73.083520

(abridged) High-z galaxy redshift surveys open up exciting possibilities for precision determinations of neutrino masses and inflationary models. The high-z surveys are more useful for cosmology than low-z ones owing to much weaker non-linearities in matter clustering, redshift-space distortion and galaxy bias. We can then utilize the two-dimensional information of the linear power spectrum in angular and redshift space to measure the scale-dependent suppression of matter clustering due to neutrino free-streaming as well as the shape of the primordial power spectrum. To illustrate capabilities of high-z surveys for constraining neutrino masses and the primordial power spectrum, we compare three future redshift surveys covering 300 square degrees at 0.5

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