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5 papers · 2 filters
The Clustering of the SDSS DR7 Main Galaxy Sample I: A 4 per cent Distance Measure at z=0.15
Ashley J. Ross, Lado Samushia, Cullan Howlett +3
We create a sample of spectroscopically identified galaxies with from the Sloan Digital Sky Survey (SDSS) Data Release 7, covering 6813 deg. Galaxies are chosen to sa…
The Clustering of the SDSS Main Galaxy Sample II: Mock galaxy catalogues and a measurement of the growth of structure from Redshift Space Distortions at
Cullan Howlett, Ashley J. Ross, Lado Samushia +2
We measure Redshift-Space Distortions (RSD) in the two-point correlation function of a sample of spectroscopically identified galaxies with , an epoch where there…
Tests of redshift-space distortions models in configuration space for the analysis of the BOSS final data release
Martin White, Beth Reid, Chia-Hsun Chuang +4
Observations of redshift-space distortions in spectroscopic galaxy surveys offer an attractive method for observing the build-up of cosmological structure, which depends both on th…
Primordial Magnetic Helicity Constraints from WMAP Nine-Year Data
Tina Kahniashvili, Yurii Maravin, George Lavrelashvili +1
If a primordial magnetic field in the universe has non-zero helicity, the violation of parity symmetry results in non-zero correlations between cosmic microwave background temperat…
Growth Rate in the Dynamical Dark Energy Models
Olga Avsajanishvili, Natalia A. Arkhipova, Lado Samushia +1
Dark Energy models with slowly-rolling cosmological scalar field provide a popular alternative to the standard, time-independent cosmological constant model. We study simultaneous…