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Articles 1 - 4 of 4
Full-Text Articles in Physical Sciences and Mathematics
The Clustering Of Galaxies In The Sdss-Iii Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations In The Data Releases 10 And 11 Galaxy Samples, Lauren Anderson, Eric Aubourg, Shun Saito, For Full List Of Authors, See Publisher's Website.
The Clustering Of Galaxies In The Sdss-Iii Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations In The Data Releases 10 And 11 Galaxy Samples, Lauren Anderson, Eric Aubourg, Shun Saito, For Full List Of Authors, See Publisher's Website.
Physics Faculty Research & Creative Works
We present a one per cent measurement of the cosmic distance scale from the detections of the baryon acoustic oscillations (BAO) in the clustering of galaxies from the Baryon Oscillation Spectroscopic Survey, which is part of the Sloan Digital Sky Survey III. Our results come from the Data Release 11 (DR11) sample, containing nearly one million galaxies and covering approximately 8500 square degrees and the redshift range 0.2 < z < 0.7. We also compare these results with those from the publicly released DR9 and DR10 samples. Assuming a concordance Λ cold dark matter (ΛCDM) cosmological model, the DR11 sample covers a volume of 13 Gpc3 and is the largest region of the Universe ever surveyed at this density. We measure the correlation function and power spectrum, including density-field reconstruction of the BAO feature. The acoustic features …
The Clustering Of Galaxies In The Sdss-Iii Baryon Oscillation Spectroscopic Survey: Testing Gravity With Redshift Space Distortions Using The Power Spectrum Multipoles, Florian Beutler, Shun Saito, For Full List Of Authors, See Publisher's Website.
The Clustering Of Galaxies In The Sdss-Iii Baryon Oscillation Spectroscopic Survey: Testing Gravity With Redshift Space Distortions Using The Power Spectrum Multipoles, Florian Beutler, Shun Saito, For Full List Of Authors, See Publisher's Website.
Physics Faculty Research & Creative Works
We analyse the anisotropic clustering of the Baryon Oscillation Spectroscopic Survey (BOSS) CMASS Data Release 11 (DR11) sample, which consists of 690 827 galaxies in the redshift range 0.43 < z < 0.7 and has a sky coverage of 8498 deg2. We perform our analysis in Fourier space using a power spectrum estimator suggested by Yamamoto et al. We measure the multipole power spectra in a self-consistent manner for the first time in the sense that we provide a proper way to treat the survey window function and the integral constraint, without the commonly used assumption of an isotropic power spectrum and without the need to split the survey into …
The Clustering Of Galaxies In The Sdss-Iii Baryon Oscillation Spectroscopic Survey: Including Covariance Matrix Errors, Will J. Percival, Ashley J. Ross, Shun Saito, For Full List Of Authors, See Publisher's Website.
The Clustering Of Galaxies In The Sdss-Iii Baryon Oscillation Spectroscopic Survey: Including Covariance Matrix Errors, Will J. Percival, Ashley J. Ross, Shun Saito, For Full List Of Authors, See Publisher's Website.
Physics Faculty Research & Creative Works
We present improved methodology for including covariance matrices in the error budget of Baryon Oscillation Spectroscopic Survey (BOSS) galaxy clustering measurements, revisiting Data Release 9 (DR9) analyses, and describing a method that is used in DR10/11 analyses presented in companion papers. The precise analysis method adopted is becoming increasingly important, due to the precision that BOSS can now reach: even using as many as 600 mock catalogues to estimate covariance of two-point clustering measurements can still lead to an increase in the errors of ~20 per cent, depending on how the cosmological parameters of interest are measured. In this paper, …
The Clustering Of Galaxies In The Sdss-Iii Baryon Oscillation Spectroscopic Survey: Signs Of Neutrino Mass In Current Cosmological Data Sets, Florian Beutler, Shun Saito, For Full List Of Authors, See Publisher's Website.
The Clustering Of Galaxies In The Sdss-Iii Baryon Oscillation Spectroscopic Survey: Signs Of Neutrino Mass In Current Cosmological Data Sets, Florian Beutler, Shun Saito, For Full List Of Authors, See Publisher's Website.
Physics Faculty Research & Creative Works
We investigate the cosmological implications of the latest growth of structure measurement from the Baryon Oscillation Spectroscopic Survey (BOSS) CMASS Data Release 11 with particular focus on the sum of the neutrino masses, Σmv. We examine the robustness of the cosmological constraints from the baryon acoustic oscillation (BAO) scale, the Alcock-Paczynski effect and redshift-space distortions (DV/rs, FAP, fσ8) of Beutler et al., when introducing a neutrino mass in the power spectrum template. We then discuss how the neutrino mass relaxes discrepancies between the cosmic microwave background (CMB) and other low-redshift …