Small scale clustering of BOSS galaxies: dependence on luminosity, color, age, stellar mass, specific star formation rate and other properties

Abstract

We measure and analyze galaxy clustering and the dependence on luminosity, color, age, stellar mass and specific star formation rate using Baryon Oscillation Spectroscopic Survey (BOSS) galaxies at $0.48<z<0.62$. We fit the monopole and quadrupole moments of the two-point correlation function (2PCF) and its projection on scales of $0.1$ -- $60.2h^{-1}$Mpc, after having split the catalog in a variety of ways. We find that the clustering dependence is consistent with previous well-established results showing the broad trends expected: For example, that brighter, redder, older, more massive and quenched galaxies are more strongly clustered. We also investigate the dependence on additional parameters previously derived from stellar population synthesis model fits to the spectra. We find that galaxy clustering depends on look-back formation time at a low level, while it has little dependence on metallicity. To understand the physics behind these trends, we fit the clustering with a simulation-based emulator to simultaneously model cosmology and galaxy bias using a Halo Occupation Distribution framework. After marginalizing parameters determining the background cosmology, galaxy bias, and a scaling parameter to decouple halo velocity field, we find that the growth rate of large scale structure as determined by the redshift-space distortions is consistent with previous analysis using the full sample, and we do not find evidence that cosmological constraints depend systematically on galaxy selection. This demonstrates that cosmological inference using small scale clustering measurements is robust to changes in the catalog selection.

17 pages, 13+2 figures, comments welcome, updated to match the published version

References in corpus (25)

• The NumPy array: a structure for efficient numerical computation
• The propagation of uncertainties in stellar population synthesis modeling I: The relevance of uncertain aspects of stellar evolution and the IMF to the derived physical properties of galaxies
• Why your model parameter confidences might be too optimistic -- unbiased estimation of the inverse covariance matrix
• Galaxy Evolution from Halo Occupation Distribution Modeling of DEEP2 and SDSS Galaxy Clustering
• The DEEP2 Galaxy Redshift Survey: Color and Luminosity Dependence of Galaxy Clustering at z~1
• Lensing is Low: Cosmology, Galaxy Formation, or New Physics?
• A 2.5% measurement of the growth rate from small-scale redshift space clustering of SDSS-III CMASS galaxies
• Corrfunc --- A Suite of Blazing Fast Correlation Functions on the CPU
• A non-linear solution to the $S_8$ tension?
• A Halo Model of Galaxy Colors and Clustering in the SDSS
• Velocity Bias from the Small Scale Clustering of SDSS-III BOSS Galaxies
• SDSS Galaxy Clustering: Luminosity & Colour Dependence and Stochasticity
• Assessing Colour-dependent Occupation Statistics Inferred from Galaxy Group Catalogues
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Luminosity and Color Dependence and Redshift Evolution
• The Effect of Fiber Collisions on the Galaxy Power Spectrum Multipole
• Stringent ${\sigma }_8$ constraints from small-scale galaxy clustering using a hybrid MCMC+emulator framework
• Scale Dependent Galaxy Bias in the SDSS as a function of Luminosity and Colour
• The Aemulus Project V: Cosmological constraint from small-scale clustering of BOSS galaxies
• Robust sampling for weak lensing and clustering analyses with the Dark Energy Survey
• The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Pairwise-Inverse-Probability and Angular Correction for Fibre Collisions in Clustering Measurements
• Creating Jackknife and Bootstrap estimates of the covariance matrix for the two-point correlation function
• Simulating intergalactic gas for DESI-like small scale Lymanα forest observations
• Mapping the real space distributions of galaxies in SDSS DR7: I. Two Point Correlation Functions
• Testing Galaxy Quenching Theories with Scatter in the Stellar to Halo Mass Relation
• Halo-model analysis of the clustering of photometric luminous red galaxies at $0.10\le z\le 1.05$ from the Subaru Hyper Suprime-Cam Survey

Cited by in corpus (1)

• A Parameter-Masked Mock Data Challenge for Beyond-Two-Point Galaxy Clustering Statistics