Planck intermediate results: LIV. the Planck multi-frequency catalogue of non-thermal sources

Research output: Contribution to journalArticleScientificpeer-review

Researchers

  • Planck Collaboration

Research units

  • Leiden University
  • University of Oslo
  • University of Oviedo
  • University of Cambridge
  • Kavli Institute for Cosmology Cambridge
  • International School for Advanced Studies
  • University of the Western Cape
  • CNRS
  • University of Padova
  • Indian Institute of Science Education and Research Thiruvananthapuram
  • Sorbonne Université
  • University of Milan
  • INAF/IASF Milano
  • Polish Academy of Sciences
  • University of Toronto
  • Lawrence Berkeley National Laboratory
  • University of California at Berkeley
  • University of Ferrara
  • Universit'a di Rome Sapienza
  • Cardiff University
  • University of Sussex
  • University of KwaZulu-Natal
  • California Institute of Technology
  • Princeton University
  • CNRS/IN2P3
  • Jet Propulsion Laboratory, California Institute of Technology
  • University of Rome La Sapienza
  • INAF - Osservatorio Astronomico di Padova
  • Universite Paris 7
  • University of Manchester
  • University of Tokyo
  • Max Planck Institute for Astrophysics
  • African Institute for Mathematical Sciences
  • University of Stellenbosch
  • Osservatorio Astronomico di Trieste
  • Simon Fraser University
  • University of Warsaw
  • Universite de Toulouse
  • Istituto Nazionale di Astrofisica
  • Universidad de Cantabria
  • INFN, Sezione di Padova
  • Osservatorio Astronomico di Bologna
  • European Space Agency - ESA
  • IRAP
  • Helsinki Institute of Physics

Abstract

This paper presents the Planck Multi-frequency Catalogue of Non-thermal (i.e. synchrotron-dominated) Sources (PCNT) observed between 30 and 857 GHz by the ESA Planck mission. This catalogue was constructed by selecting objects detected in the full mission all-sky temperature maps at 30 and 143 GHz, with a signal-to-noise ratio (S/N)> 3 in at least one of the two channels after filtering with a particular Mexican hat wavelet. As a result, 29 400 source candidates were selected. Then, a multi-frequency analysis was performed using the Matrix Filters methodology at the position of these objects, and flux densities and errors were calculated for all of them in the nine Planck channels. This catalogue was built using a different methodology than the one adopted for the Planck Catalogue of Compact Sources (PCCS) and the Second Planck Catalogue of Compact Sources (PCCS2), although the initial detection was done with the same pipeline that was used to produce them. The present catalogue is the first unbiased, full-sky catalogue of synchrotron-dominated sources published at millimetre and submillimetre wavelengths and constitutes a powerful database for statistical studies of non-thermal extragalactic sources, whose emission is dominated by the central active galactic nucleus. Together with the full multi-frequency catalogue, we also define the Bright Planck Multi-frequency Catalogue of Non-thermal Sources (PCNTb), where only those objects with a S/N > 4 at both 30 and 143 GHz were selected. In this catalogue 1146 compact sources are detected outside the adopted Planck GAL070 mask; thus, these sources constitute a highly reliable sample of extragalactic radio sources. We also flag the high-significance subsample (PCNThs), a subset of 151 sources that are detected with S/Na, >, 4 in all nine Planck channels, 75 of which are found outside the Planck mask adopted here. The remaining 76 sources inside the Galactic mask are very likely Galactic objects.

Details

Original languageEnglish
Article numberA94
Number of pages22
JournalAstronomy and Astrophysics
Volume619
Publication statusPublished - 1 Nov 2018
MoE publication typeA1 Journal article-refereed

    Research areas

  • Catalogs, Cosmology: Observations, Radio continuum: General, Submillimeter: General

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