Taking measurements of the kinematic Sunyaev-Zel'dovich effect forward: including uncertainties from velocity reconstruction with forward modeling

Abstract

We measure the kinematic Sunyaev-Zel'dovich (kSZ) effect, imprinted by maxBCG clusters, on the Planck SMICA map of the Cosmic Microwave Background (CMB). Our measurement, for the first time, directly accounts for uncertainties in the velocity reconstruction step through the process of Bayesian forward modeling. We show that this often neglected uncertainty budget typically increases the final uncertainty on the measured kSZ signal amplitude by $\simeq 15\%$ at cluster scale. We observe evidence for the kSZ effect, at a significance of $\simeq 2\sigma$. Our analysis, when applied to future higher-resolution CMB data, together with minor improvements in map-filtering and signal-modeling methods, should yield both significant and unbiased measurements of the kSZ signal, which can then be used to probe and constrain baryonic content of galaxy clusters and galaxy groups.

arXiv comment29 pages, 15 figures, 2 tables; main results in Figs. 4, 8, 10; comments welcome. v2: Add arguments and a simplified treatment for photo-z clusters (sec. 3.3), update numerical results accordingly, main results and conclusions remain unchanged. v3: Add statements regarding data and code availability, add citations, update acknowledgement, match JCAP version

References in corpus (43)

• The cosmological simulation code GADGET-2
• HEALPix -- a Framework for High Resolution Discretization, and Fast Analysis of Data Distributed on the Sphere
• The Seventh Data Release of the Sloan Digital Sky Survey
• LSST: from Science Drivers to Reference Design and Anticipated Data Products
• The Eleventh and Twelfth Data Releases of the Sloan Digital Sky Survey: Final Data from SDSS-III
• The Baryon Oscillation Spectroscopic Survey of SDSS-III
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations in the Data Release 10 and 11 galaxy samples
• Toward a halo mass function for precision cosmology: the limits of universality
• The Rockstar Phase-Space Temporal Halo Finder and the Velocity Offsets of Cluster Cores
• The Cosmic Baryon Budget
• The Sunyaev-Zel'dovich Effect
• Large-Scale Galaxy Bias
• A MaxBCG Catalog of 13,823 Galaxy Clusters from the Sloan Digital Sky Survey
• The Baryon Census in a Multiphase Intergalactic Medium: 30% of the Baryons May Still Be Missing
• Planck 2018 results. IV. Diffuse component separation
• Planck 2018 results. III. High Frequency Instrument data processing and frequency maps
• Solving Large Scale Structure in Ten Easy Steps with COLA
• SPT-3G: A Next-Generation Cosmic Microwave Background Polarization Experiment on the South Pole Telescope
• Bayesian physical reconstruction of initial conditions from large scale structure surveys
• Observations of the MIssing Baryons in the warm-hot intergalactic medium
• Planck 2015 results. VIII. High Frequency Instrument data processing: Calibration and maps
• Evidence of Galaxy Cluster Motions with the Kinematic Sunyaev-Zel'dovich Effect
• The Atacama Cosmology Telescope: The polarization-sensitive ACTPol instrument
• Reionization Revisited: Secondary CMB Anisotropies and Polarization
• Constraining the Scatter in the Mass-Richness Relation of maxBCG Clusters With Weak Lensing and X-ray Data
• Physical Bayesian modelling of the non-linear matter distribution: new insights into the Nearby Universe
• Evidence for the kinematic Sunyaev-Zeľdovich effect with ACTPol and velocity reconstruction from BOSS
• SPTpol: an instrument for CMB polarization measurements with the South Pole Telescope
• Detection of the kinematic Sunyaev-Zel'dovich effect with DES Year 1 and SPT
• Reconstructing Patchy Reionization from the Cosmic Microwave Background
• Detection of the pairwise kinematic Sunyaev-Zel'dovich effect with BOSS DR11 and the Atacama Cosmology Telescope
• Constraining local non-Gaussianities with kSZ tomography
• Constraints on gravity and dark energy from the pairwise kinematic Sunyaev-Zeldovich effect
• Constraints on the missing baryons from the kinetic Sunyaev-Zeldovich effect in Planck data
• Cosmology with kSZ: breaking the optical depth degeneracy with Fast Radio Bursts
• Constraints on massive neutrinos from the pairwise kinematic Sunyaev-Zel'dovich effect
• Galaxies going MAD: The Galaxy-Finder Comparison Project
• Matched filter optimization of kSZ measurements with a reconstructed cosmological flow field
• Prospects for measuring the relative velocities of galaxy clusters in photometric surveys using the kinetic Sunyaev-Zel'dovich Effect
• Dark energy imprints on the kinematic Sunyaev-Zel'dovich signal
• Cosmology with the pairwise kinematic SZ effect: Calibration and validation using hydrodynamical simulations
• A direct measure of free electron gas via the Kinematic Sunyaev-Zel'dovich effect in Fourier-space analysis
• Constraining the ionized gas evolution with CMB-spectroscopic survey cross-correlation

Cited by in corpus (18)

• The Atacama Cosmology Telescope: Combined kinematic and thermal Sunyaev-Zel'dovich measurements from BOSS CMASS and LOWZ halos
• The Atacama Cosmology Telescope: Modeling the Gas Thermodynamics in BOSS CMASS galaxies from Kinematic and Thermal Sunyaev-Zel'dovich Measurements
• Bayesian field-level inference of primordial non-Gaussianity using next-generation galaxy surveys
• Direct detection of the kinetic Sunyaev-Zel'dovich effect in galaxy clusters
• Impacts of the physical data model on the forward inference of initial conditions from biased tracers
• Bayesian Inference of Initial Conditions from Non-Linear Cosmic Structures using Field-Level Emulators
• Joint velocity and density reconstruction of the Universe with nonlinear differentiable forward modeling
• Field-level inference of galaxy intrinsic alignment from the SDSS-III BOSS survey
• Convolutional Neural Network-reconstructed velocity for kinetic SZ detection
• The Kinematic Sunyaev-Zel'dovich Effect with ACT, DES, and BOSS: a Novel Hybrid Estimator
• Imprint of baryons and massive neutrinos on velocity statistics
• Modeling iterative reconstruction and displacement field in the large scale structure
• Cosmology with the kinetic Sunyaev-Zeldovich effect: Independent of the optical depth and ${\sigma }_8$
• Optimal machine-driven acquisition of future cosmological data
• A Pair of Early- and Late-Forming Galaxy Cluster Samples: a Novel Way of Studying Halo Assembly Bias Assisted by a Constrained Simulation
• Cluster optical depth and pairwise velocity estimation using machine learning
• On the capability of high redshift kSZ measurement with galaxy surveys
• The Manticore Project II: Bayesian digital twins of cosmic structure across the SDSS and BOSS volumes