Euclid preparation
Astronomy and Astrophysics, vol. 713, pp. A214
Abstract
Context. The Euclid mission has the potential to determine the fundamental physical nature of late-time cosmic acceleration and, as such, of deviations from the standard cosmological model, Λ cold dark matter. In this paper we focus on model-independent methods for modifying the evolution of scalar perturbations on linear scales. We considered two powerful and convenient approaches: The first is based on the two phenomenological modified gravity (PMG) parameters, μ mg and Σ mg , which are phenomenologically connected to the clustering of matter and weak lensing (WL), respectively. The second is the effective field theory (EFT) of dark energy and modified gravity, which we used to parameterise the braiding function, α B , which defines the mixing between the metric and the dark energy field typical of Galileon theories. Aims. We estimate cosmological parameters based on spectroscopic and photometric primary probes by Euclid for a given set of additional parameters using the PMG and EFT models. Methods. We used the Fisher matrix method applied to spectroscopic galaxy clustering, WL, photometric galaxy clustering (GC ph ), and the cross-correlation between GC ph and WL. To model photometric predictions on nonlinear scales, we used the halo model reaction approach to cover two limiting cases for the screening mechanism: the unscreened (US) case, for which the screening mechanism is not present; and the super-screened (SS) case, which assumes strong screening. We also assumed scale cuts to account for our uncertainties when modelling nonlinear perturbation evolution. We chose a time-dependent form for { μ mg , Σ mg }, with two fiducial sets of values for the corresponding model parameters at the present time, { μ ¯ 0 ,Σ¯ 0 }, and two forms for α B , with one fiducial set of values for each of the model parameters, α B, 0 and { α B, 0 , m }. Results. At the 68.3% confidence level, the percentage relative errors obtained with Euclid alone and our conservative settings for the full combination of probes for the US case are: for { μ ¯ 0 ,Σ¯ 0 }, with a ΛCDM fiducial, we obtain {23.3%, 2.6%}; for a fiducial { μ ¯ 0 ,Σ¯ 0 } = {0.5,0.5} we obtain {36.2%, 2.7%}; for α B, 0 whose fiducial is 0.2, we have 31.1%; and for { α B, 0 , m } with fiducial {0.9, 2.4} we have 11.6% and 11.8%. The constraints we obtain with the SS prescription provide similar values. We also computed constraints for different combinations of probes to assess their standalone and complementary constraining power.
Authors 97
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University of Lisbon · Institute of Astrophysics and Space Sciences
Affiliation as printed
Instituto de Astrofísica e Ciências do Espaço, Faculdade de Ciências, Universidade de Lisboa, Campo Grande
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University of Naples Federico II
Affiliation as printed
Dipartimento di Fisica “E. Pancini”, Universita degli Studi di Napoli Federico II
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Centre National de la Recherche Scientifique · Université Toulouse III - Paul Sabatier · Saint Joseph University · Heidelberg University · 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
Institut für Theoretische Physik, University of Heidelberg
Université St Joseph; Faculty of Sciences
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Ludwig-Maximilians-Universität München
Affiliation as printed
Universitäts-Sternwarte München, Fakultät für Physik, Ludwig-Maximilians-Universität München
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University of Lisbon · Institute of Astrophysics and Space Sciences
Affiliation as printed
Instituto de Astrofísica e Ciências do Espaço, Faculdade de Ciências, Universidade de Lisboa, Campo Grande
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Royal Observatory · University of Edinburgh
Affiliation as printed
Institute for Astronomy, University of Edinburgh, Royal Observatory
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Astronomical Observatory of Rome · Istituto Nazionale di Fisica Nucleare, Sezione di Roma I · National Institute for Astrophysics
Affiliation as printed
INAF-Osservatorio Astronomico di Roma
INFN-Sezione di Roma, Piazzale Aldo Moro, 2 – c/o Dipartimento di Fisica, Edificio G. Marconi
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University of Portsmouth · RWTH Aachen University
Affiliation as printed
Institute for Theoretical Particle Physics and Cosmology (TTK), RWTH Aachen University
Institute of Cosmology and Gravitation, University of Portsmouth
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Astronomical Observatory of Rome · Istituto Nazionale di Fisica Nucleare, Sezione di Roma I · National Institute for Astrophysics
Affiliation as printed
INAF-Osservatorio Astronomico di Roma
INFN-Sezione di Roma, Piazzale Aldo Moro, 2 – c/o Dipartimento di Fisica, Edificio G. Marconi
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University College London · University of Portsmouth
Affiliation as printed
Department of Physics and Astronomy, University College London
Institute of Cosmology and Gravitation, University of Portsmouth
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Centre National de la Recherche Scientifique · Université de Montpellier · Laboratoire Univers et Particules de Montpellier
Affiliation as printed
Laboratoire univers et particules de Montpellier, Université de Montpellier, CNRS
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Affiliation as printed
Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester
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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
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University of Bonn · Ruhr University Bochum
Affiliation as printed
Ruhr University Bochum, Faculty of Physics and Astronomy, Astronomical Institute (AIRUB), German Centre for Cosmological Lensing (GCCL)
Universität Bonn, Argelander-Institut für Astronomie
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Affiliation as printed
Institute of Cosmology and Gravitation, University of Portsmouth
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Affiliation as printed
Université de Genève, Département de Physique Théorique and Centre for Astroparticle Physics
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Istituto Nazionale di Fisica Nucleare, Sezione di Torino · University of Applied Sciences of the Grisons · University of Turin
Affiliation as printed
Dipartimento di Fisica, Università degli Studi di Torino
INFN-Sezione di Torino
University of Applied Sciences of the Grisons, Department of Applied Future Technologies
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Affiliation as printed
Institute Lorentz, Leiden University
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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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Affiliation as printed
School of Mathematics and Physics, University of Surrey
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Brera Astronomical Observatory · National Institute for Astrophysics
Affiliation as printed
INAF-Osservatorio Astronomico di Brera
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Trieste Astronomical Observatory · Istituto Nazionale di Fisica Nucleare, Sezione di Trieste · Institute for Fundamental Physics of the Universe · Osservatorio di Astrofisica e Scienza dello Spazio · National Institute for Astrophysics
Affiliation as printed
IFPU, Institute for Fundamental Physics of the Universe
INAF-Osservatorio Astronomico di Trieste
INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna
INFN, Sezione di Trieste
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Scuola Internazionale Superiore di Studi Avanzati · Brera Astronomical Observatory · National Institute for Astrophysics · University of Bologna
Affiliation as printed
Dipartimento di Fisica e Astronomia, Università di Bologna
INAF-Osservatorio Astronomico di Brera
SISSA, International School for Advanced Studies
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Brera Astronomical Observatory · National Institute for Astrophysics
Affiliation as printed
INAF-Osservatorio Astronomico di Brera
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Institute for Fundamental Physics of the Universe · Osservatorio di Astrofisica e Scienza dello Spazio · National Institute for Astrophysics
Affiliation as printed
IFPU, Institute for Fundamental Physics of the Universe
INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna
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Istituto Nazionale di Fisica Nucleare, Sezione di Torino
Affiliation as printed
INFN-Sezione di Torino
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University of Surrey · Istituto Nazionale di Fisica Nucleare, Sezione di Bologna · University of Genoa
Affiliation as printed
Dipartimento di Fisica, Università di Genova
INFN-Sezione di Bologna
School of Mathematics and Physics, University of Surrey
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Astronomical Observatory of Capodimonte · Istituto Nazionale di Fisica Nucleare, Sezione di Genova · University of Naples Federico II · National Institute for Astrophysics
Affiliation as printed
Department of Physics “E. Pancini”, University Federico II
INAF-Osservatorio Astronomico di Capodimonte
INFN-Sezione di Genova
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Istituto Nazionale di Fisica Nucleare · Universidade do Porto · Institute of Astrophysics and Space Sciences · Istituto Nazionale di Fisica Nucleare, Sezione di Napoli · Centro de Astrofísica da Universidade do Porto
Affiliation as printed
INFN section of Naples
Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto, CAUP, Rua das Estrelas
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Istituto Nazionale di Fisica Nucleare, Sezione di Torino · University of Applied Sciences of the Grisons · University of Turin
Affiliation as printed
Dipartimento di Fisica, Università degli Studi di Torino
INFN-Sezione di Torino
University of Applied Sciences of the Grisons, Department of Applied Future Technologies
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Universidade do Porto · Osservatorio Astrofisico di Torino · National Institute for Astrophysics
Affiliation as printed
Faculdade de Ciências da Universidade do Porto, Rua do Campo de Alegre
INAF-Osservatorio Astrofisico di Torino
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Istituto Nazionale di Fisica Nucleare, Sezione di Torino
Affiliation as printed
INFN-Sezione di Torino
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Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas · National Institute for Astrophysics
Affiliation as printed
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT)
INAF-IASF Milano
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Astronomical Observatory of Rome · National Institute for Astrophysics
Affiliation as printed
INAF-Osservatorio Astronomico di Roma
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Brera Astronomical Observatory · National Institute for Astrophysics
Affiliation as printed
INAF-Osservatorio Astronomico di Brera
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Astronomical Observatory of Capodimonte · University of Naples Federico II · National Institute for Astrophysics
Affiliation as printed
Department of Physics “E. Pancini”, University Federico II
INAF-Osservatorio Astronomico di Capodimonte
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Affiliation as printed
Port d’Informació Científica, Campus UAB, C. Albareda s/n
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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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Royal Observatory · University of Edinburgh
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 · Instituto de Astrofísica de Canarias · European Space Research Institute
Affiliation as printed
European Space Agency/ESRIN
Instituto de Astrofísica de Canarias, Vía Láctea
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European Space Astronomy Centre
Affiliation as printed
ESAC/ESA, Camino Bajo del Castillo, s/n., Urb. Villafranca del Castillo
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Istituto Nazionale di Fisica Nucleare, Sezione di Torino
Affiliation as printed
INFN-Sezione di Torino
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Lyon 1 Université · Centre National de la Recherche Scientifique · Institut National de Physique Nucléaire et de Physique des Particules · Institut de Physique des 2 Infinis de Lyon · Institut de Ciències del Cosmos · École Polytechnique Fédérale de Lausanne · Universitat de Barcelona
Affiliation as printed
Institut de Ciències del Cosmos (ICCUB), Universitat de Barcelona (IEEC-UB)
Institute of Physics, Laboratory of Astrophysics, Ecole Polytechnique Fédérale de Lausanne (EPFL), Observatoire de Sauverny
Université Claude Bernard Lyon 1, CNRS/IN2P3, IP2I Lyon, UMR 5822
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Institució Catalana de Recerca i Estudis Avançats
Affiliation as printed
Institució Catalana de Recerca i Estudis Avançats (ICREA)
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Centre National de la Recherche Scientifique · University of Lisbon · Institute of Astrophysics and Space Sciences · Institut National de Physique Nucléaire et de Physique des Particules · Institut de Physique des 2 Infinis de Lyon
Affiliation as printed
Instituto de Astrofísica e Ciências do Espaço, Faculdade de Ciências, Universidade de Lisboa, Campo Grande
UCB Lyon 1, CNRS/IN2P3, IUF, IP2I Lyon
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Affiliation as printed
Departamento de Física, Faculdade de Ciências, Universidade de Lisboa, Edifício C8, Campo Grande
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Affiliation as printed
Department of Astronomy, University of Geneva
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Institute for Fundamental Physics of the Universe
Affiliation as printed
IFPU, Institute for Fundamental Physics of the Universe
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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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Affiliation as printed
Institute Lorentz, Leiden University
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Affiliation as printed
Departamento de Física, Faculdade de Ciências, Universidade de Lisboa, Edifício C8, Campo Grande
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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 Research Institute
Affiliation as printed
European Space Agency/ESRIN
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Institute for Space Astrophysics and Planetology · National Institute for Astrophysics
Affiliation as printed
INAF-Istituto di Astrofisica e Planetologia Spaziali
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European Space Astronomy Centre
Affiliation as printed
ESAC/ESA, Camino Bajo del Castillo, s/n., Urb. Villafranca del Castillo
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Istituto Nazionale di Fisica Nucleare · Istituto Nazionale di Fisica Nucleare, Sezione di Padova
Affiliation as printed
INFN-Padova
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Centre National de la Recherche Scientifique · Aix-Marseille Université · Centre de physique des particules de Marseille · Institut National de Physique Nucléaire et de Physique des Particules
Affiliation as printed
Aix-Marseille Université, CNRS/IN2P3, CPPM
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Centre National de la Recherche Scientifique · Université Paris Cité · Commissariat à l'Énergie Atomique et aux Énergies Alternatives · Université Paris-Saclay · Astronomical Observatory of Rome · Astrophysique, Instrumentation et Modélisation · National Institute for Astrophysics
Affiliation as printed
INAF-Osservatorio Astronomico di Roma
Université Paris-Saclay, Université Paris Cité, CEA, CNRS, AIM
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European Space Astronomy Centre
Affiliation as printed
ESAC/ESA, Camino Bajo del Castillo, s/n., Urb. Villafranca del Castillo
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Agenzia Spaziale Italiana · Brera Astronomical Observatory · National Institute for Astrophysics
Affiliation as printed
INAF-Osservatorio Astronomico di Brera
Space Science Data Center, Italian Space Agency
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Institut d'Estudis Espacials de Catalunya · Istituto Nazionale di Fisica Nucleare, Sezione di Bologna · Universitat Politècnica de Catalunya
Affiliation as printed
INFN-Bologna
Institut d’Estudis Espacials de Catalunya (IEEC), Edifici RDIT, Campus UPC
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Affiliation as printed
Institute of Space Sciences (ICE, CSIC), Campus UAB, Carrer de Can Magrans, s/n
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Institute for Fundamental Physics of the Universe
Affiliation as printed
IFPU, Institute for Fundamental Physics of the Universe
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Brera Astronomical Observatory · National Institute for Astrophysics
Affiliation as printed
INAF-Osservatorio Astronomico di Brera
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European Space Agency · European Space Research and Technology Centre
Affiliation as printed
European Space Agency/ESTEC
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Institute for Fundamental Physics of the Universe
Affiliation as printed
IFPU, Institute for Fundamental Physics of the Universe
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Royal Observatory · University of Edinburgh
Affiliation as printed
Institute for Astronomy, University of Edinburgh, Royal Observatory
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Brera Astronomical Observatory · National Institute for Astrophysics · University of Bologna
Affiliation as printed
Dipartimento di Fisica e Astronomia, Università di Bologna
INAF-Osservatorio Astronomico di Brera
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Affiliation as printed
School of Physics, HH Wills Physics Laboratory, University of Bristol, Tyndall Avenue
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Max Planck Institute for Extraterrestrial Physics
Affiliation as printed
Max Planck Institute for Extraterrestrial Physics
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University of Bristol · Ludwig-Maximilians-Universität München
Affiliation as printed
School of Physics, HH Wills Physics Laboratory, University of Bristol, Tyndall Avenue
Universitäts-Sternwarte München, Fakultät für Physik, Ludwig-Maximilians-Universität München
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University of Milan · University of Surrey · Osservatorio Astronomico di Padova · National Institute for Astrophysics
Affiliation as printed
Dipartimento di Fisica “Aldo Pontremoli”, Università degli Studi di Milano
INAF-Osservatorio Astronomico di Padova
School of Mathematics and Physics, University of Surrey
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Istituto Nazionale di Fisica Nucleare, Sezione di Milano
Affiliation as printed
INFN-Sezione di Milano
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Affiliation as printed
Institute of Theoretical Astrophysics, University of Oslo
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Affiliation as printed
Jet Propulsion Laboratory, California Institute of Technology
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Technical University of Denmark
Affiliation as printed
Felix Hormuth Engineering
Technical University of Denmark
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Affiliation as printed
Cosmic Dawn Center (DAWN)
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Centre National de la Recherche Scientifique · Université Toulouse III - Paul Sabatier · Institut d'Astrophysique de Paris · Sorbonne Université · 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
Institut d’Astrophysique de Paris, UMR 7095, CNRS, and Sorbonne Université
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Centre National de la Recherche Scientifique · Université Paris-Saclay · Institut National de Physique Nucléaire et de Physique des Particules · Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
Affiliation as printed
Université Paris-Saclay, CNRS/IN2P3, IJCLab
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Max Planck Institute for Astronomy
Affiliation as printed
Max-Planck-Institut für Astronomie
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Affiliation as printed
Department of Physics and Astronomy, University College London
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Affiliation as printed
NASA Goddard Space Flight Center
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Istituto Nazionale di Fisica Nucleare · Istituto Nazionale di Fisica Nucleare, Sezione di Padova
Affiliation as printed
INFN-Padova
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Affiliation as printed
Institute of Theoretical Astrophysics, University of Oslo
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Centre National de la Recherche Scientifique · Aix-Marseille Université · Centre de physique des particules de Marseille · Institut National de Physique Nucléaire et de Physique des Particules
Affiliation as printed
Aix-Marseille Université, CNRS/IN2P3, CPPM
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European Space Astronomy Centre
Affiliation as printed
ESAC/ESA, Camino Bajo del Castillo, s/n., Urb. Villafranca del Castillo
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Affiliation as printed
Université de Genève, Département de Physique Théorique and Centre for Astroparticle Physics
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Affiliation as printed
Department of Physics
Department of Physics and Helsinki Institute of Physics
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Affiliation as printed
Helsinki Institute of Physics, Gustaf Hällströmin katu 2
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Istituto Nazionale di Fisica Nucleare, Sezione di Torino
Affiliation as printed
INFN-Sezione di Torino
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Istituto Nazionale di Fisica Nucleare, Sezione di Milano
Affiliation as printed
INFN-Sezione di Milano
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Affiliation as printed
Department of Physics
Department of Physics and Helsinki Institute of Physics
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Centre National de la Recherche Scientifique · Université Paris Cité · Université Paris Sciences et Lettres · Observatoire de Paris · Laboratoire Univers et Théories
Affiliation as printed
Laboratoire Univers et Théorie, Observatoire de Paris, Université PSL, Université Paris Cité, CNRS
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Affiliation as printed
SKA Observatory, Jodrell Bank, Lower Withington
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University of Milan · European Space Agency · Osservatorio Astronomico di Padova · European Space Research and Technology Centre · National Institute for Astrophysics
Affiliation as printed
Dipartimento di Fisica “Aldo Pontremoli”, Università degli Studi di Milano
European Space Agency/ESTEC
INAF-Osservatorio Astronomico di Padova
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