Testing the Halo Model Against the SDSS Photometric Survey

Abstract

We present halo model predictions for the expected angular clustering and associated errors from the completed Sloan Digital Sky Survey (SDSS) photometric galaxy sample. These results are used to constrain halo model parameters under the assumption of a fixed LCDM cosmology using standard Fisher matrix techniques. Given the ability of the five-color SDSS photometry to separate galaxies into sub-populations by intrinsic color, we also use extensions of the standard halo model formalism to calculate the expected clustering of red and blue galaxy sub-populations as a further test of the galaxy evolution included in the semi-analytic methods for populating dark matter halos with galaxies. The extremely small sample variance and Poisson errors from the completed SDSS survey should result in very impressive constraints (~1-10%) on the halo model parameters for a simple magnitude-limited sample and should provide an extremely useful check on the behavior of current and future N-body simulations and semi-analytic techniques. We also show that similar constraints are possible using a narrow selection function, as would be possible using photometric redshifts, without making linear assumptions regarding the evolution of the underlying power spectra. In both cases, we explore the effects of uncertainty in the selection function on the resulting constraints and the degeneracies between various combinations of parameters.

16 pages, 17 figures

References in corpus (8)

• Galaxy Clustering in Early SDSS Redshift Data
• Cosmological Parameter Extraction from the First Season of Observations with DASI
• Analysis of Systematic Effects and Statistical Uncertainties in Angular Clustering of Galaxies from Early SDSS Data
• Power Spectrum Covariance of Weak Gravitational Lensing
• The 3D Power Spectrum from Angular Clustering of Galaxies in Early SDSS Data
• The Angular Correlation Function of Galaxies from Early SDSS Data
• Modeling Galaxy Clustering by Color
• Galaxy clustering in the Sloan Digital Sky Survey (SDSS) : A first comparison with the APM Galaxy Catalogue

Cited by in corpus (21)

• Galaxy Groups in the SDSS DR4: I. The Catalogue and Basic Properties
• Theoretical Models of the Halo Occupation Distribution: Separating Central and Satellite Galaxies
• The Luminosity and Color Dependence of the Galaxy Correlation Function
• Towards a Concordant Model of Halo Occupation Statistics
• Joint Galaxy-Lensing Observables and the Dark Energy
• What Does Clustering Tell Us About the Buildup of the Red Sequence?
• SDSS Galaxy Clustering: Luminosity & Colour Dependence and Stochasticity
• Breaking the Degeneracies Between Cosmology and Galaxy Bias
• The Cross-Correlation between Galaxies and Groups: Probing the Galaxy Distribution in and around Dark Matter Haloes
• The Abundance and Radial Distribution of Satellite Galaxies
• Reconstructing the cosmic density field with the distribution of dark matter halos
• Galaxy Bias and Halo-Occupation Numbers from Large-Scale Clustering
• The distribution of red and blue galaxies in groups: an empirical test of the halo model
• The Stellar Mass Components of Galaxies: Comparing Semi-Analytical Models with Observation
• Quasar-Galaxy and Galaxy-Galaxy Cross-Correlations: Model Predictions with Realistic Galaxies
• The Small-scale Clustering of Luminous Red Galaxies via Cross-Correlation Techniques
• On estimating cosmology-dependent covariance matrices
• Relative clustering and the joint halo occupation distribution of red-sequence and blue-cloud galaxies in COMBO-17
• Modeling Galaxy-Galaxy Weak Lensing with SDSS Groups
• KiDS+VIKING+GAMA: Halo occupation distributions and correlations of satellite numbers with a new halo model of the galaxy-matter bispectrum for galaxy-galaxy-galaxy lensing
• Measuring the Galaxy-Galaxy-Mass Three-point Correlation Function with Weak Gravitational Lensing