The clustering of galaxies at z~0.5 in the SDSS-III Data Release 9 BOSS-CMASS sample: a test for the LCDM cosmology

We present results on the clustering of 282,068 galaxies in the Baryon Oscillation Spectroscopic Survey (BOSS) sample of massive galaxies with redshifts 0.4<z<0.7 which is part of the Sloan Digital Sky Survey III project. Our results cover a large range of scales from ~0.5 to ~90 Mpc/h. We compare these estimates with the expectations of the flat LCDM cosmological model with parameters compatible with WMAP7 data. We use the MultiDark cosmological simulation together with a simple halo abundance matching technique, to estimate galaxy correlation functions, power spectra, abundance of subhaloes and galaxy biases. We find that the LCDM model gives a reasonable description to the observed correlation functions at z~0.5, which is a remarkably good agreement considering that the model, once matched to the observed abundance of BOSS galaxies, does not have any free parameters. However, we find a deviation (>~10%) in the correlation functions for scales less than ~1 Mpc/h and ~10-40 Mpc/h. A more realistic abundance matching model and better statistics from upcoming observations are needed to clarify the situation. We also estimate that about 12% of the "galaxies" in the abundance-matched sample are satellites inhabiting central haloes with mass M>~1e14 M_sun/h. Using the MultiDark simulation we also study the real space halo bias b(r) of the matched catalogue finding that b=2.00+/-0.07 at large scales, consistent with the one obtained using the measured BOSS projected correlation function. Furthermore, the linear large-scale bias depends on the number density n of the abundance-matched sample as b=-0.048-(0.594+/-0.02)*log(n/(h/Mpc)^3). Extrapolating these results to BAO scales we measure a scale-dependent damping of the acoustic signal produced by non-linear evolution that leads to ~2-4% dips at ~3 sigma level for wavenumbers k>~0.1 h/Mpc in the linear large-scale bias.Comment: Replaced to match published version. Typos corrected; 25 pages, 17 figures, 9 tables. To appear in MNRAS. Correlation functions (projected and redshift-space) and correlation matrices of CMASS presented in Appendix B. Correlation and covariance data for the combined CMASS sample can be downloaded from http://www.sdss3.org/science/boss_publications.ph

An Investigation of the Music Education Curriculum at Member Institutions of the Council for Christian Colleges and Universities

178 p.Thesis (Ed.D.)--University of Illinois at Urbana-Champaign, 2006.Consistent with the findings of this study and numerous studies on this topic is the great variability in curriculum and organization of the music unit. The data collected in this study may help to guide music educators in the process of program review. It may also suggest a variety of configurations for curriculum and resources.U of I OnlyRestricted to the U of I community idenfinitely during batch ingest of legacy ETD

An Investigation of the Music Education Curriculum at Member Institutions of the Council for Christian Colleges and Universities

178 p.Thesis (Ed.D.)--University of Illinois at Urbana-Champaign, 2006.Consistent with the findings of this study and numerous studies on this topic is the great variability in curriculum and organization of the music unit. The data collected in this study may help to guide music educators in the process of program review. It may also suggest a variety of configurations for curriculum and resources.U of I OnlyRestricted to the U of I community idenfinitely during batch ingest of legacy ETD