Gravitational lensing of the CMB by galaxy clusters
arXiv:astro-ph/0408064 · doi:10.1051/0004-6361:20041785
Abstract
We adapt a non-linear filter proposed by Hu 2001 for detecting lensing of the CMB by large-scale structures to recover surface-density profiles of galaxy clusters from their localised, weak gravitational lensing effect on CMB fields. Shifting the band-pass of the filter to smaller scales, and normalising it such as to reproduce the convergence rather than the deflection angle, we find that the mean density profile of a sample of 100 clusters can be recovered to better than 10% from well within the scale radius to almost the virial radius. The kinetic Sunyaev-Zel'dovich effect is shown to be a negligible source of error. We test the filter applying it to data simulated using the characteristics of the Atacama Cosmology Telescope (ACT), showing that it will be possible to recover mean cluster profiles outside a radius of 1' corresponding to ACT's angular resolution.
arXiv comment8 pages, 12 figures, submitted to A&A
References in corpus (15)
- A Universal Density Profile from Hierarchical Clustering
- Large scale bias and the peak background split
- An excursion set model of hierarchical clustering: Ellipsoidal collapse and the moving barrier
- Cosmology with the Sunyaev-Zel'dovich Effect
- Determination of Inflationary Observables by Cosmic Microwave Background Anisotropy Experiments
- Foregrounds and Forecasts for the Cosmic Microwave Background
- Mapping the Dark Matter through the CMB Damping Tail
- Non-gaussian CMB temperature fluctuations from peculiar velocities of clusters
- The Atacama Cosmology Telescope
- Hydrodynamical simulations of the Sunyaev--Zel'dovich effect
- Lensing Induced Cluster Signatures in Cosmic Microwave Background
- Analyze This! A Cosmological Constraint Package for CMBEASY
- Gravitational Lensing of the Microwave Background by Galaxy Clusters
- Lensing Sunyaev-Zel'dovich Clusters
- Cluster Lensing of the CMB
Cited by in corpus (25)
- Cluster Lenses
- An optimal filter for the detection of galaxy clusters through weak lensing
- Evidence of Lensing of the Cosmic Microwave Background by Dark Matter Halos
- Cluster Mass Estimators from CMB Temperature and Polarization Lensing
- Exploring cosmic origins with CORE: gravitational lensing of the CMB
- Measuring cluster masses with CMB lensing: a statistical approach
- CMB Lensing and the WMAP Cold Spot
- 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
- Reconstructing Small Scale Lenses from the Cosmic Microwave Background Temperature Fluctuations
- Measuring galaxy cluster masses with CMB lensing using a Maximum Likelihood estimator: Statistical and systematic error budgets for future experiments
- Improved estimation of cluster mass profiles from the cosmic microwave background
- CMB lensing reconstruction biases from masking extragalactic sources
- Mass Estimation of Galaxy Clusters with Deep Learning II: CMB Cluster Lensing
- Imprints of gravitational lensing in the Planck CMB data at the location of WISExSCOS galaxies
- Lensing reconstruction of cluster-mass cross-correlation with cosmic microwave background polarization
- CMB Cluster Lensing: Cosmography with the Longest Lever Arm
- An Inpainting Approach to Tackle the Kinematic and Thermal SZ Induced Biases in CMB-Cluster Lensing Estimators
- The miniJPAS survey: The galaxy populations in the most massive cluster in miniJPAS, mJPC2470-1771
- Galaxy-cluster masses via 21st-century measurements of lensing of 21-cm fluctuations
- Cluster profiles from beyond-the-QE CMB lensing mass maps
- Suppressing the thermal SZ-induced variance in CMB-cluster lensing estimators
- A measurement of cluster masses using Planck and SPT-SZ CMB lensing
- The importance of the merging activity for the kinetic polarization of the Sunyaev-Zel'dovich signal from galaxy clusters
- Observing high redshift galaxy clusters through lensing of the Ostriker-Vishniac effect