Euclid

RUNG

Abstract

The current standard model of cosmology successfully describes a variety of measurements, but the nature of its main ingredients, dark matter and dark energy, remains unknown. Euclid is a medium-class mission in the Cosmic Vision 2015–2025 programme of the European Space Agency (ESA) that will provide high-resolution optical imaging, as well as near-infrared imaging and spectroscopy, over about 14 000 deg2 of extragalactic sky. In addition to accurate weak lensing and clustering measurements that probe structure formation over half of the age of the Universe, its primary probes for cosmology, these exquisite data will enable a wide range of science. This paper provides a high-level overview of the mission, summarising the survey characteristics, the various data-processing steps, and data products. We also highlight the main science objectives and expected performance.

Authors 9

1. Y. Mellier

   Centre National de la Recherche Scientifique · Institut d'Astrophysique de Paris · Sorbonne Université

   Affiliation as printed

   Institut d’Astrophysique de Paris, 98bis Boulevard Arago, 75014 Paris, France

   Institut d’Astrophysique de Paris, UMR 7095, CNRS, and Sorbonne Université, 98 bis boulevard Arago, 75014 Paris, France

2. Abdurro'uf
3. J.A. Acevedo Barroso
4. Ana Achúcarro Aachen Institute Lorentz

   Leiden University · University of the Basque Country

   Affiliation as printed

   Departamento de Física, Universidad del País Vasco UPV-EHU, 48940 Leioa, Spain

   Institute Lorentz, Leiden University, Niels Bohrweg 2, 2333 CA Leiden, The Netherlands

5. J. Adamek

   University of Zurich

   Affiliation as printed

   Department of Astrophysics, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland

6. Rémi Adam

   Centre National de la Recherche Scientifique · Université Côte d'Azur · Lagrange Laboratory · Observatoire de la Côte d’Azur

   Affiliation as printed

   Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, Bd de l’Observatoire, CS 34229, 06304 Nice Cedex 4, France

7. G. E. Addison

   Johns Hopkins University

   Affiliation as printed

   Johns Hopkins University 3400 North Charles Street Baltimore, MD 21218, USA

8. Nabilah Aghanim

   Centre National de la Recherche Scientifique · Université Paris-Saclay · Institut d'Astrophysique Spatiale

   Affiliation as printed

   Université Paris-Saclay, CNRS, Institut d’astrophysique spatiale, 91405 Orsay, France

9. M. Aguena

   Centre National de la Recherche Scientifique · Université Paris Cité

   Affiliation as printed

   Université Paris Cité, CNRS, Astroparticule et Cosmologie, 75013 Paris, France