Cosmology and Fundamental Physics with the Euclid Satellite

By Luca Amendola, Stephen A. Appleby, D. Bacon, T. Baker, Marco Baldi, N. Bartolo, A. Blanchard, C. Bonvin, Stefano Borgani, E. Branchini and 53 more. 2012

1,091 citations recorded by the source corpus.

Euclid is a European Space Agency medium-class mission selected for launch in 2019 within the Cosmic Vision 2015–2025 program. The main goal of Euclid is to understand the origin of the accelerated expansion of the universe. Euclid will explore the expansion history of the universe and the evolution of cosmic structures by measuring shapes and red-shifts of galaxies as well as the distribution of clusters of galaxies over a large fraction of the sky.Although the main driver for Euclid is the nature of dark energy, Euclid science covers a vast range of topics, from cosmology to galaxy evolution to planetary research. In this review we focus on cosmology and fundamental physics, with a strong emphasis on science beyond the current standard models. We discuss five broad topics: dark energy and modified gravity, dark matter, initial conditions, basic assumptions and questions of methodology in the data analysis.This review has been planned and carried out within Euclid’s Theory Working Group and is meant to provide a guide to the scientific themes that will underlie the activity of the group during the preparation of the Euclid mission.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

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Citations in the corpus

Learning to predict the cosmological structure formation (2018, neutral): “[7]”
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Using the Full Power of the Cosmic Microwave Background to Probe Axion Dark Matter (2017, background): “Axion quintessence can be further probed by observables sensitive to its effect on the Hubble expansion (e.g. Amendola et al. 2013; Marsh et al. 2014a; Emami et al. 2016; Smer-Barreto & Liddle 2017).”
A new analysis of galaxy 2-point functions in the BOSS survey, including full-shape information and post-reconstruction BAO (2021, methodology): “In the next few years, surveys like DESI [85] and Euclid [86] will probe larger volumes at higher redshifts, greatly increasing our constraining power on cosmological parameters while making accurate modeling on quasilinear scales ever more important.”
Dark energy, α-attractors, and large-scale structure surveys (2017, methodology): “These include several ground based experiments such as the Dark Energy Spectroscopic Instrument (DESI) [81, 82], the Large Synoptic Survey Telescope (LSST) [83, 84], and the Square Kilometre Array (SKA) [85–90], as well as the space based experiments Euclid [91, 92] and the Wide Field InfraRed Surve”
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The exponential tail of inflationary fluctuations: consequences for primordial black holes (2019, background): “They can be measured in the temperature and polarisation anisotropies of the cosmic microwave background (CMB) [13] at gigaparsec scales, and in probes of the large-scale structure of our universe at megaparsec scales [14, 15].”
Neutrino Mass Ordering from Oscillations and Beyond: 2018 Status and Future Prospects (2018, background): “…to the total neutrino mass∑ mν (de Putter et al., 2009; Abazajian et al., 2011; Carbone et al., 2011, 2012; Hamann et al., 2012; Basse et al., 2014; FontRibera et al., 2014b; Allison et al., 2015; Archidiacono et al., 2017; Amendola et al., 2018; Di Valentino et al., 2018a; Sprenger et al., 2018).”
Tension and constraints on modified gravity parametrizations of $G_{\textrm{eff}}(z)$ from growth rate and Planck data (2017, methodology): “The quality and quantity of the growth rate data is expected to improve dramatically in the coming years with the Euclid [49] and LSST [50] surveys.”