Euclid Quick Data Release (Q1)
Astronomy and Astrophysics, vol. 711, pp. A4
Abstract
The Euclid satellite is an ESA mission that was launched in July 2023. Euclid is working in its regular observing mode with the target of observing an area of 14 000 deg 2 with two instruments, the Visible Camera (VIS) and the Near IR Spectrometer and Photometer (NISP) down to I E = 24.5 mag (10 σ ) in the Euclid Wide Survey. Ground-based imaging data in the ugriz bands complement the Euclid data to enable photo- z determination and VIS PSF modelling for weak lensing analysis. Euclid investigates the distance-redshift relation and the evolution of cosmic structures by measuring the shapes and redshifts of galaxies and clusters of galaxies out to z ∼ 2. Generating the multi-wavelength catalogues from Euclid and ground-based data is an essential part of the Euclid data processing system. In the framework of the Euclid Science Ground Segment (SGS), the aim of the MERge Processing Function (MER PF) pipeline is to detect objects in the Euclid imaging data, measure their properties, and merge them into a single multi-wavelength catalogue. The MER PF pipeline performs source detection on both visible (VIS) and near-infrared (NIR) images and offers four different photometric measurements: Kron total flux, aperture photometry on PSF-matched images, template fitting photometry, and Sérsic fitting photometry. Furthermore, the MER PF pipeline measures a set of ancillary quantities, spanning from morphology to quality flags, to better characterise all detected sources. In this paper, we show how the MER PF pipeline is designed, detailing its main steps, and we show that the pipeline products meet the tight requirements that Euclid aims to achieve on photometric accuracy. We also present the other measurements (e.g., morphology) that are included in the OU-MER output catalogues and we list all output products coming out of the MER PF pipeline.
Authors 93
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National Institute for Astrophysics · Trieste Astronomical Observatory
Affiliation as printed
INAF-Osservatorio Astronomico di Trieste
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Ludwig-Maximilians-Universität München
Affiliation as printed
Universitäts-Sternwarte München, Fakultät für Physik, Ludwig-Maximilians-Universtität München
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Centre National de la Recherche Scientifique · Université Paris-Saclay · Institut d'Astrophysique Spatiale
Affiliation as printed
Université Paris-Saclay, CNRS, Institut d’astrophysique spatiale
IAS - Institut d'astrophysique spatiale (Bâtiment 121 91405 ORSAY CEDEX - France)
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Max Planck Institute for Extraterrestrial Physics
Affiliation as printed
Max Planck Institute for Extraterrestrial Physics
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National Institute for Astrophysics · Astronomical Observatory of Rome
Affiliation as printed
INAF-Osservatorio Astronomico di Roma
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National Institute for Astrophysics · Trieste Astronomical Observatory
Affiliation as printed
INAF-Osservatorio Astronomico di Trieste
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National Institute for Astrophysics · Astronomical Observatory of Rome
Affiliation as printed
INAF-Osservatorio Astronomico di Roma
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National Institute for Astrophysics · Astronomical Observatory of Rome
Affiliation as printed
INAF-Osservatorio Astronomico di Roma
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Centre National de la Recherche Scientifique · Université Paris-Saclay · Institut d'Astrophysique Spatiale
Affiliation as printed
Université Paris-Saclay, CNRS, Institut d’astrophysique spatiale
IAS - Institut d'astrophysique spatiale (Bâtiment 121 91405 ORSAY CEDEX - France)
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Centre National de la Recherche Scientifique · Université Paris-Saclay · Institut d'Astrophysique Spatiale
Affiliation as printed
Université Paris-Saclay, CNRS, Institut d’astrophysique spatiale
IAS - Institut d'astrophysique spatiale (Bâtiment 121 91405 ORSAY CEDEX - France)
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Centre National de la Recherche Scientifique · Université Toulouse III - Paul Sabatier · Institut de Recherche en Astrophysique et Planétologie · Université de Toulouse
Affiliation as printed
Institut de Recherche en Astrophysique et Planétologie (IRAP), Université de Toulouse, CNRS, UPS, CNES
IRAP - Institut de recherche en astrophysique et planétologie (9 avenue Colonel Roche 31028 Toulouse - France)
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National Institute for Astrophysics · Astronomical Observatory of Rome · National Observatory
Affiliation as printed
INAF-Osservatorio Astronomico di Roma
Observatorio Nacional
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National Institute for Astrophysics · Laboratoire d’Etudes du Rayonnement et de la Matière en Astrophysique et Atmosphères · Université Paris Diderot · Trieste Astronomical Observatory · University of Trieste · Galaxies, Etoiles, Physique et Instrumentation
Affiliation as printed
Dipartimento di Fisica – Sezione di Astronomia, Università di Trieste
INAF-Osservatorio Astronomico di Trieste
GEPI - Galaxies, Etoiles, Physique, Instrumentation (5, place Jules Janssen 92195 MEUDON CEDEX - France)
LERMA - Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique et Atmosphères = Laboratory for Studies of Radiation and Matter in Astrophysics and Atmospheres (61, avenue de l'Observatoire - 75014 PARIS - France)
UPD7 - Université Paris Diderot - Paris 7 (5 rue Thomas-Mann - 75205 Paris cedex 13 - France)
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National Institute for Astrophysics · Trieste Astronomical Observatory · Ludwig-Maximilians-Universität München
Affiliation as printed
INAF-Osservatorio Astronomico di Trieste
Universitäts-Sternwarte München, Fakultät für Physik, Ludwig-Maximilians-Universtität München
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University of Manchester · University of Toronto
Affiliation as printed
David A. Dunlap Department of Astronomy & Astrophysics, University of Toronto
Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester
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Ludwig-Maximilians-Universität München
Affiliation as printed
Universitäts-Sternwarte München, Fakultät für Physik, Ludwig-Maximilians-Universtität München
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Centre National de la Recherche Scientifique · Université Paris Cité
Affiliation as printed
Université Paris Cité, CNRS, Astroparticule et Cosmologie
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National Institute for Astrophysics · Université Paris Diderot · Astronomical Observatory of Rome
Affiliation as printed
INAF-Osservatorio Astronomico di Roma
APC (UMR_7164) - AstroParticule et Cosmologie (APC - UMR 7164, Université Paris Diderot, 10 rue Alice Domon et Léonie Duquet, case postale 7020, F-75205 Paris Cedex 13 - France)
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National Institute for Astrophysics · Astronomical Observatory of Rome
Affiliation as printed
INAF-Osservatorio Astronomico di Roma
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Centre National de la Recherche Scientifique · Université Paris-Saclay · Institut d'Astrophysique Spatiale
Affiliation as printed
Université Paris-Saclay, CNRS, Institut d’astrophysique spatiale
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Institut d'Astrophysique Spatiale · National Institute for Astrophysics · Astronomical Observatory of Rome
Affiliation as printed
INAF-Osservatorio Astronomico di Roma
IAS - Institut d'astrophysique spatiale (Bâtiment 121 91405 ORSAY CEDEX - France)
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Institut d'Astrophysique Spatiale · European Space Agency · European Space Astronomy Centre
Affiliation as printed
ESAC/ESA
IAS - Institut d'astrophysique spatiale (Bâtiment 121 91405 ORSAY CEDEX - France)
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Affiliation as printed
School of Mathematics and Physics, University of Surrey
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National Institute for Astrophysics · Brera Astronomical Observatory
Affiliation as printed
INAF-Osservatorio Astronomico di Brera
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Osservatorio di Astrofisica e Scienza dello Spazio · National Institute for Astrophysics
Affiliation as printed
INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna
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Scuola Internazionale Superiore di Studi Avanzati · National Institute for Astrophysics · Commissariat à l'Énergie Atomique et aux Énergies Alternatives · Trieste Astronomical Observatory · CEA Paris-Saclay - Etablissement de Saclay · CEA Paris-Saclay · Astrophysique, Instrumentation et Modélisation · Istituto Nazionale di Fisica Nucleare, Sezione di Trieste · Institute for Fundamental Physics of the Universe
Affiliation as printed
IFPU, Institute for Fundamental Physics of the Universe
INAF-Osservatorio Astronomico di Trieste
INFN, Sezione di Trieste
SISSA, International School for Advanced Studies
AIM (UMR_7158 / UMR_E_9005 / UM_112) - Astrophysique Interprétation Modélisation (AIM - UMR 7158 - UMR E 9005, ex 'Astrophysique Interactions Multi-échelles', Service d'astrophysique, CEA/Saclay, Orme des Merisiers F-91191 GIF SUR YVETTE CEDEX - France)
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Osservatorio di Astrofisica e Scienza dello Spazio · National Institute for Astrophysics · Istituto Nazionale di Fisica Nucleare, Sezione di Bologna · University of Bologna
Affiliation as printed
Dipartimento di Fisica e Astronomia, Università di Bologna
INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna
INFN-Sezione di Bologna
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National Institute for Astrophysics · Osservatorio Astronomico di Padova
Affiliation as printed
INAF-Osservatorio Astronomico di Padova
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Osservatorio di Astrofisica e Scienza dello Spazio · National Institute for Astrophysics
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INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna
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Centre National d'Études Spatiales
Affiliation as printed
Centre National d’Etudes Spatiales – Centre spatial de Toulouse
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Osservatorio di Astrofisica e Scienza dello Spazio · National Institute for Astrophysics · Centre National d'Études Spatiales · Centre d'Études Spatiales de la Biosphère
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INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna
CNES - Centre National d'Études Spatiales [Toulouse] (18 avenue Edouard Belin 31401 Toulouse - France)
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Affiliation as printed
ATG Europe BV
Kapteyn Astronomical Institute, University of Groningen
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National Institute for Astrophysics · European Space Agency · Trieste Astronomical Observatory · Institute for Fundamental Physics of the Universe
Affiliation as printed
IFPU, Institute for Fundamental Physics of the Universe
INAF-Osservatorio Astronomico di Trieste
ESA - Agence Spatiale Européenne = European Space Agency (Agence spatiale européenne (ESA) 8-10, rue Mario Nikis F-75015 Paris - France)
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National Institute for Astrophysics · Osservatorio Astrofisico di Torino
Affiliation as printed
INAF-Osservatorio Astrofisico di Torino
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National Institute for Astrophysics · University of Genoa · Istituto Nazionale di Fisica Nucleare, Sezione di Genova · Brera Astronomical Observatory
Affiliation as printed
Dipartimento di Fisica, Università di Genova
INAF-Osservatorio Astronomico di Brera
INFN-Sezione di Genova
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National Institute for Astrophysics · University of Naples Federico II · Astronomical Observatory of Capodimonte
Affiliation as printed
Department of Physics “E. Pancini”, University Federico II
INAF-Osservatorio Astronomico di Capodimonte
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Universidade do Porto · Institute of Astrophysics and Space Sciences · Centro de Astrofísica da Universidade do Porto
Affiliation as printed
Faculdade de Ciências da Universidade do Porto
Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto, CAUP
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National Institute for Astrophysics · Istituto Nazionale di Fisica Nucleare, Sezione di Torino · University of Turin · Osservatorio Astrofisico di Torino
Affiliation as printed
Dipartimento di Fisica, Università degli Studi di Torino
INAF-Osservatorio Astrofisico di Torino
INFN-Sezione di Torino
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Leiden University · European Space Agency · Leiden Observatory · European Space Research and Technology Centre
Affiliation as printed
European Space Agency/ESTEC
Institute Lorentz, Leiden University
Leiden Observatory, Leiden University
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National Institute for Astrophysics · European Space Agency · Osservatorio Astrofisico di Torino
Affiliation as printed
INAF-Osservatorio Astrofisico di Torino
ESA - Agence Spatiale Européenne = European Space Agency (Agence spatiale européenne (ESA) 8-10, rue Mario Nikis F-75015 Paris - France)
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National Institute for Astrophysics
Affiliation as printed
INAF-IASF Milano
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Universitat Autònoma de Barcelona · Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas · Port d'Informació Científica
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Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT)
Port d’Informació Científica, Campus UAB
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Affiliation as printed
Institute for Theoretical Particle Physics and Cosmology (TTK), RWTH Aachen University
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Institute of Space Sciences · Institut d'Estudis Espacials de Catalunya
Affiliation as printed
Institut d’Estudis Espacials de Catalunya (IEEC)
Institute of Space Sciences (ICE, CSIC), Campus UAB
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Osservatorio di Astrofisica e Scienza dello Spazio · National Institute for Astrophysics
Affiliation as printed
INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna
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National Institute for Astrophysics · Istituto Nazionale di Fisica Nucleare · Istituto Nazionale di Fisica Nucleare, Sezione di Napoli · Astronomical Observatory of Capodimonte
Affiliation as printed
INAF-Osservatorio Astronomico di Capodimonte
INFN section of Naples
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University of Hawaiʻi at Mānoa · University of Hawaii System
Affiliation as printed
Institute for Astronomy, University of Hawaii
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Affiliation as printed
Dipartimento di Fisica e Astronomia “Augusto Righi” – Alma Mater Studiorum Università di Bologna
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University of Edinburgh · Royal Observatory
Affiliation as printed
Institute for Astronomy, University of Edinburgh, Royal Observatory
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Affiliation as printed
Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester
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European Space Agency · European Space Astronomy Centre · European Space Research Institute
Affiliation as printed
ESAC/ESA
European Space Agency/ESRIN
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Centre National de la Recherche Scientifique · Institut National de Physique Nucléaire et de Physique des Particules · Lyon 1 Université · Institut de Physique des 2 Infinis de Lyon
Affiliation as printed
Université Claude Bernard Lyon 1, CNRS/IN2P3, IP2I Lyon, UMR 5822
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Institut de Ciències del Cosmos · Universitat de Barcelona · Institució Catalana de Recerca i Estudis Avançats · Institut de Physique des 2 Infinis de Lyon
Affiliation as printed
Institució Catalana de Recerca i Estudis Avançats (ICREA)
Institut de Ciències del Cosmos (ICCUB), Universitat de Barcelona (IEEC-UB)
IP2I Lyon - Institut de Physique des 2 Infinis de Lyon (Campus LyonTech-la Doua Bâtiment Paul DIRAC 4 Rue Enrico Fermi 69622 Villeurbanne Cedex - France)
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Centre National de la Recherche Scientifique · Institut National de Physique Nucléaire et de Physique des Particules · Institut de Physique des 2 Infinis de Lyon
Affiliation as printed
UCB Lyon 1, CNRS/IN2P3, IUF, IP2I Lyon
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University College London · Institut de Physique des 2 Infinis de Lyon
Affiliation as printed
Mullard Space Science Laboratory, University College London
IP2I Lyon - Institut de Physique des 2 Infinis de Lyon (Campus LyonTech-la Doua Bâtiment Paul DIRAC 4 Rue Enrico Fermi 69622 Villeurbanne Cedex - France)
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Centre National de la Recherche Scientifique · Aix-Marseille Université · Canada–France–Hawaii Telescope
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Aix-Marseille Université, CNRS, CNES, LAM
Canada-France-Hawaii Telescope
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University of Lisbon · Institute of Astrophysics and Space Sciences · Laboratoire d’Astrophysique de Marseille
Affiliation as printed
Departamento de Física, Faculdade de Ciências, Universidade de Lisboa
Instituto de Astrofísica e Ciências do Espaço, Faculdade de Ciências, Universidade de Lisboa
LAM - Laboratoire d'Astrophysique de Marseille (Pôle de l'Étoile Site de Château-Gombert 38, rue Frédéric Joliot-Curie 13388 Marseille cedex 13 - France)
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National Institute for Astrophysics · Agenzia Spaziale Italiana · Astronomical Observatory of Rome
Affiliation as printed
INAF-Osservatorio Astronomico di Roma
Space Science Data Center, Italian Space Agency
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Affiliation as printed
Department of Astronomy, University of Geneva
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Centre National de la Recherche Scientifique · Aix-Marseille Université
Affiliation as printed
Aix-Marseille Université, CNRS, CNES, LAM
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National Institute for Astrophysics · Trieste Astronomical Observatory · Laboratoire d’Astrophysique de Marseille
Affiliation as printed
INAF-Osservatorio Astronomico di Trieste
LAM - Laboratoire d'Astrophysique de Marseille (Pôle de l'Étoile Site de Château-Gombert 38, rue Frédéric Joliot-Curie 13388 Marseille cedex 13 - France)
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National Institute for Astrophysics · Institute for Space Astrophysics and Planetology
Affiliation as printed
INAF-Istituto di Astrofisica e Planetologia Spaziali
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Affiliation as printed
Department of Astronomy, University of Geneva
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University of Manchester · University of Edinburgh · Royal Observatory
Affiliation as printed
Institute for Astronomy, University of Edinburgh, Royal Observatory
Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester
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European Space Agency · European Space Astronomy Centre
Affiliation as printed
ESAC/ESA
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Istituto Nazionale di Fisica Nucleare, Sezione di Padova · Istituto Nazionale di Fisica Nucleare
Affiliation as printed
INFN-Padova
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Centre National de la Recherche Scientifique · Institut National de Physique Nucléaire et de Physique des Particules · Aix-Marseille Université · Centre de physique des particules de Marseille
Affiliation as printed
Aix-Marseille Université, CNRS/IN2P3, CPPM
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Ludwig-Maximilians-Universität München · Centre de physique des particules de Marseille · Max Planck Institute for Extraterrestrial Physics
Affiliation as printed
Max Planck Institute for Extraterrestrial Physics
Universitäts-Sternwarte München, Fakultät für Physik, Ludwig-Maximilians-Universtität München
CPPM - Centre de Physique des Particules de Marseille (163, avenue de Luminy - Case 902 - 13288 Marseille cedex 09 - France)
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National Institute for Astrophysics · Institute for Space Astrophysics and Planetology
Affiliation as printed
INAF-Istituto di Astrofisica e Planetologia Spaziali
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Osservatorio di Astrofisica e Scienza dello Spazio · National Institute for Astrophysics
Affiliation as printed
INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna
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National Institute for Astrophysics · Agenzia Spaziale Italiana · Astronomical Observatory of Rome
Affiliation as printed
INAF-Osservatorio Astronomico di Roma
Space Science Data Center, Italian Space Agency
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Centre National de la Recherche Scientifique · Institut National de Physique Nucléaire et de Physique des Particules · Lyon 1 Université · Institut de Physique des 2 Infinis de Lyon
Affiliation as printed
Université Claude Bernard Lyon 1, CNRS/IN2P3, IP2I Lyon, UMR 5822
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Osservatorio di Astrofisica e Scienza dello Spazio · National Institute for Astrophysics · Istituto Nazionale di Fisica Nucleare, Sezione di Bologna · Institut de Physique des 2 Infinis de Lyon
Affiliation as printed
INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna
INFN-Bologna
IP2I Lyon - Institut de Physique des 2 Infinis de Lyon (Campus LyonTech-la Doua Bâtiment Paul DIRAC 4 Rue Enrico Fermi 69622 Villeurbanne Cedex - France)
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Affiliation as printed
School of Physics, HH Wills Physics Laboratory, University of Bristol
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Centre National de la Recherche Scientifique · Institut National de Physique Nucléaire et de Physique des Particules · Aix-Marseille Université · Centre de physique des particules de Marseille
Affiliation as printed
Aix-Marseille Université, CNRS/IN2P3, CPPM
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National Institute for Astrophysics · Trieste Astronomical Observatory · Centre de physique des particules de Marseille
Affiliation as printed
INAF-Osservatorio Astronomico di Trieste
CPPM - Centre de Physique des Particules de Marseille (163, avenue de Luminy - Case 902 - 13288 Marseille cedex 09 - France)
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Osservatorio di Astrofisica e Scienza dello Spazio · National Institute for Astrophysics
Affiliation as printed
INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna
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Ludwig-Maximilians-Universität München
Affiliation as printed
Universitäts-Sternwarte München, Fakultät für Physik, Ludwig-Maximilians-Universtität München
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Centre National de la Recherche Scientifique · Institut National de Physique Nucléaire et de Physique des Particules · Aix-Marseille Université · Centre de physique des particules de Marseille
Affiliation as printed
Aix-Marseille Université, CNRS/IN2P3, CPPM
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University of Edinburgh · Centre de physique des particules de Marseille · Royal Observatory
Affiliation as printed
Institute for Astronomy, University of Edinburgh, Royal Observatory
CPPM - Centre de Physique des Particules de Marseille (163, avenue de Luminy - Case 902 - 13288 Marseille cedex 09 - France)
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Osservatorio di Astrofisica e Scienza dello Spazio · National Institute for Astrophysics · Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
Affiliation as printed
INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna
INFN-Sezione di Bologna
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National Institute for Astrophysics · Brera Astronomical Observatory
Affiliation as printed
INAF-Osservatorio Astronomico di Brera
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National Institute for Astrophysics · Osservatorio Astronomico di Padova
Affiliation as printed
INAF-Osservatorio Astronomico di Padova
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Ludwig-Maximilians-Universität München · Max Planck Institute for Extraterrestrial Physics
Affiliation as printed
Max Planck Institute for Extraterrestrial Physics
Universitäts-Sternwarte München, Fakultät für Physik, Ludwig-Maximilians-Universtität München
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National Research Council Canada · Herzberg Institute of Astrophysics
Affiliation as printed
NRC Herzberg
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Affiliation as printed
Institute of Theoretical Astrophysics, University of Oslo
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Leiden University · Leiden Observatory
Affiliation as printed
Leiden Observatory, Leiden University
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Affiliation as printed
Jet Propulsion Laboratory, California Institute of Technology
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Affiliation as printed
Department of Physics, Lancaster University
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Affiliation as printed
Felix Hormuth Engineering
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Technical University of Denmark
Affiliation as printed
Cosmic Dawn Center (DAWN)
Technical University of Denmark
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Max Planck Institute for Astronomy
Affiliation as printed
Max-Planck-Institut für Astronomie
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Affiliation as printed
NASA Goddard Space Flight Center
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