ComPACT: ACT+Planck galaxy cluster catalogue

Abstract

Galaxy clusters are the most massive gravitationally bound systems consisting of dark matter, hot baryonic gas and stars. They play an important role in observational cosmology and galaxy evolution studies. We develop a deep learning model for segmentation of Sunyaev-Zeldovich (SZ) signal on ACT+Planck intensity maps and construct a pipeline for microwave cluster detection in the ACT footprint. The proposed model allows us to identify previously unknown galaxy clusters, i.e. it is capable of detecting SZ sources below the detection threshold adopted in the published galaxy clusters catalogues (such as ACT DR5 and PSZ2). In this paper, we use the derived SZ signal map to considerably improve a cluster purity in the extended catalogue of Sunyaev-Zeldovich objects from Planck data (SZcat) in the ACT footprint. From SZcat, we create a new microwave galaxy cluster catalogue (ComPACT), which includes 2,962 SZ objects with cluster purity conservatively estimated as $\gtrsim 74-84$\%. We categorise objects in the catalogue into 3 categories, based on their cluster reliability. Within the ComPACT catalogue, there are $\gtrsim 977$ new clusters with respect to the ACT DR5 and PSZ2 catalogues.

13 pages, 11 figures. MNRAS accepted

References in corpus (53)

• Very Deep Convolutional Networks for Large-Scale Image Recognition
• Array Programming with NumPy
• Astropy: A Community Python Package for Astronomy
• The NumPy array: a structure for efficient numerical computation
• Planck 2015 results. XIII. Cosmological parameters
• The Astropy Project: Building an inclusive, open-science project and status of the v2.0 core package
• scikit-image: Image processing in Python
• The Astropy Project: Sustaining and Growing a Community-oriented Open-source Project and the Latest Major Release (v5.0) of the Core Package
• Cosmological Parameters from Observations of Galaxy Clusters
• Chandra Cluster Cosmology Project III: Cosmological Parameter Constraints
• The universal galaxy cluster pressure profile from a representative sample of nearby systems (REXCESS) and the Y_SZ-M_500 relation
• Formation of Galaxy Clusters
• Galaxy Clusters Discovered via the Sunyaev-Zel'dovich Effect in the 2500-square-degree SPT-SZ survey
• The 10 Meter South Pole Telescope
• Planck 2013 results. XX. Cosmology from Sunyaev-Zeldovich cluster counts
• The MCXC: a Meta-Catalogue of X-ray detected Clusters of galaxies
• Testing X-ray Measurements of Galaxy Clusters with Cosmological Simulations
• A New Robust Low-Scatter X-ray Mass Indicator for Clusters of Galaxies
• Cluster Cosmology Constraints from the 2500 deg${}^2$ SPT-SZ Survey: Inclusion of Weak Gravitational Lensing Data from Magellan and the Hubble Space Telescope
• Weighing the Giants IV: Cosmology and Neutrino Mass
• The Atacama Cosmology Telescope: A Catalog of > 4000 Sunyaev-Zel'dovich Galaxy Clusters
• The galaxy cluster mass scale and its impact on cosmological constraints from the cluster population
• An SZ-selected sample of the most massive galaxy clusters in the 2500-square-degree South Pole Telescope survey
• On the Cluster Physics of Sunyaev-Zel'dovich Surveys I: The Influence of Feedback, Non-thermal Pressure and Cluster Shapes on Y-M Scaling Relations
• Catalog Extraction in SZ Cluster Surveys: a matched filter approach
• Lensing and X-ray mass estimates of clusters (SIMULATION)
• The Cool-Core Bias in X-ray Galaxy Cluster Samples I: Method And Application To HIFLUGCS
• On the nature of hydrostatic equilibrium in galaxy clusters
• Mass Calibration and Cosmological Analysis of the SPT-SZ Galaxy Cluster Sample Using Velocity Dispersion ${\sigma }_v$ and X-ray $Y_{\text{X}}$ Measurements
• Filtering techniques for the detection of Sunyaev-Zel'dovich clusters in multifrequency CMB maps
• X-Ray morphological analysis of the Planck ESZ clusters
• The Atacama Cosmology Telescope: DR5 maps of 18,000 square degrees of the microwave sky from ACT 2008-2018 data
• On the Cluster Physics of Sunyaev-Zel'dovich and X-ray Surveys III: Measurement Biases and Cosmological Evolution of Gas and Stellar Mass Fractions
• Measuring the dynamical state of Planck SZ-selected clusters: X-ray peak - BCG offset
• Deblending and Classifying Astronomical Sources with Mask R-CNN Deep Learning
• Planck intermediate results. III. The relation between galaxy cluster mass and Sunyaev-Zeldovich signal
• Exploring the hydrostatic mass bias in MUSIC clusters: application to the NIKA2 mock sample
• The Atacama Cosmology Telescope: Two-season ACTPol Extragalactic Point Sources and their Polarization properties
• Constraining Cluster Virialization Mechanism and Cosmology using Thermal-SZ-selected clusters from Future CMB Surveys
• Cosmological parameters constraints from galaxy cluster mass function measurements in combination with other cosmological data
• Planck Intermediate Results. XXXVI. Optical identification and redshifts of Planck SZ sources with telescopes in the Canary Islands Observatories
• Powellsnakes II: a fast Bayesian approach to discrete object detection in multi-frequency astronomical data sets
• ComPRASS: a Combined Planck-RASS catalogue of X-ray-SZ clusters
• Atacama Cosmology Telescope: Dusty star-forming galaxies and active galactic nuclei in the equatorial survey
• An extension of the Planck galaxy cluster catalogue
• Euclid preparation. XXXII. Evaluating the weak lensing cluster mass biases using the Three Hundred Project hydrodynamical simulations
• Possible indication for non-zero neutrino mass and additional neutrino species from cosmological observations
• SKA Science Data Challenge 2: analysis and results
• PSZSPT: a joint Planck and SPT-SZ cluster catalog
• Scatter in Sunyaev--Zel'dovich effect scaling relations explained by inter-cluster variance in mass accretion histories
• Deep learning for Sunyaev-Zel'dovich detection in Planck
• DeepSZ: Identification of Sunyaev-Zel'dovich Galaxy Clusters using Deep Learning
• The measurements of matter density perturbations amplitude from cosmological data