Improving cosmological constraints from galaxy cluster number counts with CMB-cluster-lensing data: Results from the SPT-SZ survey and forecasts for the future

Abstract

We show the improvement to cosmological constraints from galaxy cluster surveys with the addition of CMB-cluster lensing data. We explore the cosmological implications of adding mass information from the 3.1$\sigma$ detection of gravitational lensing of the cosmic microwave background (CMB) by galaxy clusters to the Sunyaev-Zel'dovich (SZ) selected galaxy cluster sample from the 2500 deg${}^2$ SPT-SZ survey and targeted optical and X-ray followup data. In the $\Lambda$CDM model, the combination of the cluster sample with the Planck power spectrum measurements prefers ${\sigma }_8{\left({\Omega }_m/0.3\right)}^{0.5}=0.831\pm 0.020$. Adding the cluster data reduces the uncertainty on this quantity by a factor of 1.4, which is unchanged whether or not the 3.1$\sigma$ CMB-cluster lensing measurement is included. We then forecast the impact of CMB-cluster lensing measurements with future cluster catalogs. Adding CMB-cluster lensing measurements to the SZ cluster catalog of the on-going SPT-3G survey is expected to improve the expected constraint on the dark energy equation of state $w$ by a factor of 1.3 to $\sigma (w)=0.19$. We find the largest improvements from CMB-cluster lensing measurements to be for ${\sigma }_8$, where adding CMB-cluster lensing data to the cluster number counts reduces the expected uncertainty on ${\sigma }_8$ by factors of 2.4 and 3.6 for SPT-3G and CMB-S4 respectively.

arXiv commentComments are welcome

References in corpus (45)

• emcee: The MCMC Hammer
• The NumPy array: a structure for efficient numerical computation
• A Universal Density Profile from Hierarchical Clustering
• Efficient Computation of CMB anisotropies in closed FRW models
• MultiNest: an efficient and robust Bayesian inference tool for cosmology and particle physics
• Cosmological Parameters from Observations of Galaxy Clusters
• Planck 2018 results. V. CMB power spectra and likelihoods
• Weak Gravitational Lensing of the CMB
• Cluster Abundance Constraints on Quintessence Models
• Galaxy Clusters Discovered via the Sunyaev-Zel'dovich Effect in the 2500-square-degree SPT-SZ survey
• Linking halo mass to galaxy luminosity
• Constraints on Cosmological Parameters from Future Galaxy Cluster Surveys
• Cluster Cosmology Constraints from the 2500 deg${}^2$ SPT-SZ Survey: Inclusion of Weak Gravitational Lensing Data from Magellan and the Hubble Space Telescope
• Galaxy Clusters Selected with the Sunyaev-Zel'dovich Effect from 2008 South Pole Telescope Observations
• SPT-3G: A Next-Generation Cosmic Microwave Background Polarization Experiment on the South Pole Telescope
• CosmoSIS: modular cosmological parameter estimation
• Galaxy clusters discovered via the Sunyaev-Zel'dovich effect in the first 720 square degrees of the South Pole Telescope survey
• Cosmological Constraints from Galaxy Clusters in the 2500 square-degree SPT-SZ Survey
• Dark Energy Survey Year 1 Results: Weak Lensing Mass Calibration of redMaPPer Galaxy Clusters
• The Growth of Cool Cores and Evolution of Cooling Properties in a Sample of 83 Galaxy Clusters at 0.3 < z < 1.2 Selected from the SPT-SZ Survey
• The Remarkable Similarity of Massive Galaxy Clusters From z~0 to z~1.9
• Cluster Mass Calibration at High Redshift: HST Weak Lensing Analysis of 13 Distant Galaxy Clusters from the South Pole Telescope Sunyaev-Zel'dovich Survey
• Constraints from thermal Sunyaev-Zeldovich cluster counts and power spectrum combined with CMB
• Constraining dark energy with Sunyaev-Zel'dovich cluster surveys
• Dark Energy Survey Year 1 Results: Cosmological Constraints from Cluster Abundances, Weak Lensing, and Galaxy Correlations
• Lensing Induced Cluster Signatures in Cosmic Microwave Background
• Cosmological constraints from Planck galaxy clusters with CMB lensing mass bias calibration
• Sunyaev-Zel'dovich Effect and X-ray Scaling Relations from Weak-Lensing Mass Calibration of 32 SPT Selected Galaxy Clusters
• Evidence of Lensing of the Cosmic Microwave Background by Dark Matter Halos
• A Measurement of Gravitational Lensing of the Cosmic Microwave Background by Galaxy Clusters Using Data from the South Pole Telescope
• Cluster Mass Estimators from CMB Temperature and Polarization Lensing
• Measuring cluster masses with CMB lensing: a statistical approach
• Mass bias evolution in tSZ cluster cosmology
• A Measurement of CMB Cluster Lensing with SPT and DES Year 1 Data
• Gravitational Lensing of the Microwave Background by Galaxy Clusters
• Mass Calibration of Optically Selected DES clusters using a Measurement of CMB-Cluster Lensing with SPTpol Data
• Cluster Masses from CMB and Galaxy Weak Lensing
• CMB-Cluster Lensing
• Measuring galaxy cluster masses with CMB lensing using a Maximum Likelihood estimator: Statistical and systematic error budgets for future experiments
• Impact of Weak Lensing Mass Calibration on eROSITA Galaxy Cluster Cosmological Studies -- a Forecast
• A Detection of CMB-Cluster Lensing using Polarization Data from SPTpol
• Mass Estimation of Galaxy Clusters with Deep Learning II: CMB Cluster Lensing
• Neutrino Mass Inference from SZ Surveys
• Optical follow-up study of 32 high-redshift galaxy cluster candidates from Planck with the William Herschel Telescope
• Quantifying the statistics of CMB-lensing-derived galaxy cluster mass measurements with simulations

Cited by in corpus (7)

• Cosmology From CMB Lensing and Delensed EE Power Spectra Using 2019-2020 SPT-3G Polarization Data
• Mitigating the impact of the CIB on galaxy cluster SZ detection with spectrally constrained matched filters
• Cluster profiles from beyond-the-QE CMB lensing mass maps
• A measurement of cluster masses using Planck and SPT-SZ CMB lensing
• Non-Parametric Analysis for the Dark Matter Density Evolution
• The non-thermal secondary CMB anisotropies from a cosmic distribution of radio galaxy lobes
• Towards including super-sample covariance in the unbinned likelihood for cluster abundance cosmology