Comparison of filters for the detection of point sources in Planck simulations

Abstract

We study the detection of extragalactic point sources in two-dimensional flat simulations for all the frequencies of the forthcoming ESA's Planck mission. In this work we have used the most recent available templates of the microwave sky: as for the diffuse Galactic components and the Sunyaev-Zel'dovich clusters we have used the ``Plank Reference Sky Model''; as for the extragalactic point sources, our simulations - which comprise all the source populations relevant in this frequency interval - are based on up-to-date cosmological evolution models for sources. To consistently compare the capabilities of different filters for the compilation of the - hopefully - most complete blind catalogue of point sources, we have obtained three catalogues by filtering the simulated sky maps with: the Matched Filter (MF), the Mexican Hat Wavelet (MHW1) and the Mexican Hat Wavelet 2 (MHW2), the first two members of the MHW Family. For the nine Planck frequencies we show the number of real and spurious detections and the percentage of spurious detections at different flux detection limits as well as the completeness level of the catalogues and the average errors in the estimation of the flux density of detected sources. Allowing a 5 % of spurious detections, we obtain the following number of detections by filtering with the MHW2 an area equivalent to half of the sky: 580 (30 GHz), 342 (44 GHz), 341 (70 GHz), 730 (100 GHz), 1130 (143 GHz), 1233 (217 GHz), 990 (353 GHz), 1025 (545 GHz) and 3183 (857 GHz). Our current results indicate that the MF and the MHW2 yield similar results, whereas the MHW1 performs worse in some cases and especially at very low fluxes. This is a relevant result, because we are able to obtain comparable results with the well known Matched Filter and with this specific wavelet, the MHW2, which is much easier to implement and use.

arXiv comment20 pages, 14 figures. Accepted for publication in MNRAS

References in corpus (38)

• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• HEALPix -- a Framework for High Resolution Discretization, and Fast Analysis of Data Distributed on the Sphere
• A Physical Model for the Co-evolution of QSOs and of their Spheroidal Hosts
• Extrapolation of Galactic Dust Emission at 100 Microns to CMBR Frequencies Using FIRAS
• Detection of non-Gaussianity in the WMAP 1-year data using spherical wavelets
• A Robotic Wide-Angle H-Alpha Survey of the Southern Sky
• Foregrounds and Forecasts for the Cosmic Microwave Background
• Predictions for high-frequency radio surveys of extragalactic sources
• Extragalactic Source Counts and Contributions to the Anisotropies of the Cosmic Microwave Background. Predictions for the Planck Surveyor mission
• Joint Formation of QSOs and Spheroids: QSOs as clocks of star formation in Spheroids
• Towards a free-free template for CMB foregrounds
• The non-Gaussian Cold Spot in WMAP: significance, morphology and foreground contribution
• Towards a model of full-sky Galactic synchrotron intensity and linear polarisation: a re-analysis of the Parkes data
• A radio catalog of Galactic HII regions for applications from decimeter to millimeter wavelengths
• Filtering techniques for the detection of Sunyaev-Zel'dovich clusters in multifrequency CMB maps
• A high-significance detection of non-Gaussianity in the WMAP 1-year data using directional spherical wavelets
• Removing point sources from CMB maps
• The Mexican Hat Wavelet Family. Application to point source detection in CMB maps
• A Bayesian approach to discrete object detection in astronomical datasets
• Isotropic Wavelets: a Powerful Tool to Extract Point Sources from CMB Maps
• The imprints of local superclusters on the Sunyaev-Zel'dovich signals and their detectability with Planck
• Point Source Detection using the Spherical Mexican Hat Wavelet on simulated all-sky Planck maps
• Predictions on the angular power spectrum of clustered extragalactic point sources at CMB frequencies from flat and all--sky 2D-simulations
• Optimal detection of sources on a homogeneous and isotropic background
• Combining maximum-entropy and the mexican hat wavelet to reconstruct the microwave sky
• Scale-Adaptive filters for the detection/separation of compact sources
• Predicted Planck Extragalactic Point Source Catalogue
• The effect of point sources on satellite observations of the cosmic microwave background
• Effect of clustering on extragalactic source counts with low-resolution instruments
• Intracluster Comptonization of the CMB: Mean Spectral Distrortion and Cluster Number Counts
• Confusion noise at far-IR to millimeter wavelengths
• Comparing filters for the detection of point sources
• Point source detection and extraction from simulated Planck TOD using optimal adaptive filters
• Filter design for the detection of compact sources based on the Neyman-Pearson detector
• A full sky prediction of the SZ effect from diffuse hot gas in the local universe and the upper limit from the WMAP data
• An adaptive filter for the PLANCK Compact Source Catalogue construction
• Asteroid detection at millimetric wavelengths with the Planck survey
• Some Good Reasons to Use Matched Filters for the Detection of Point Sources in CMB Maps

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