Cosmology at the frontier of neutrino physics

Molly E. C. Swanson, Will J. Percival, Ofer Lahav

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Combining measurements of the galaxy power spectrum and the cosmic microwave background (CMB) is a powerful means of constraining the summed mass of neutrino species Σm v , but is subject to systematic uncertainties due to non-linear structure formation, redshift-space distortions and galaxy bias. We empirically test the robustness of neutrino mass results to these effects by separately analyzing power spectra of red and blue galaxies from the Sloan Digital Sky Survey (SDSS-II) Data Release 7 (DR7), combined with the CMB five-year Wilkinson Microwave Anisotropy Probe (WMAP5) data. The between upper limits on neutrino mass for red and blue galaxies is approximately 1σ from the value expected from mock catalogs for most models and k ranges tested. This indicates good agreement for current data but hints at possible issues for nextgeneration surveys.
Original languageEnglish
Title of host publicationFrontiers of fundamental physics
Subtitle of host publicationthe eleventh international symposium
EditorsJoseph Kouneiher, Cecile Barbachoux, Thierry Masson, Dimitry Vey
PublisherAmerican Institute of Physics
Pages286-297
ISBN (Print)9780735410435
DOIs
Publication statusPublished - 2012
EventFrontiers of fundamental physics: the eleventh international symposium - Paris, France
Duration: 6 Jul 20109 Jul 2010

Publication series

NameAIP Conference Proceedings
PublisherAmerican Institute of Physics
Volume1146
ISSN (Print)0094-243x
ISSN (Electronic)1551-7616

Conference

ConferenceFrontiers of fundamental physics: the eleventh international symposium
Country/TerritoryFrance
CityParis
Period6/07/109/07/10

Keywords

  • neutrinos
  • cosmological parameters
  • cosmology: observations
  • galaxies: statistics

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