Cosmic Visions Dark Energy: Science

Abstract

Cosmic surveys provide crucial information about high energy physics including strong evidence for dark energy, dark matter, and inflation. Ongoing and upcoming surveys will start to identify the underlying physics of these new phenomena, including tight constraints on the equation of state of dark energy, the viability of modified gravity, the existence of extra light species, the masses of the neutrinos, and the potential of the field that drove inflation. Even after the Stage IV experiments, DESI and LSST, complete their surveys, there will still be much information left in the sky. This additional information will enable us to understand the physics underlying the dark universe at an even deeper level and, in case Stage IV surveys find hints for physics beyond the current Standard Model of Cosmology, to revolutionize our current view of the universe. There are many ideas for how best to supplement and aid DESI and LSST in order to access some of this remaining information and how surveys beyond Stage IV can fully exploit this regime. These ideas flow to potential projects that could start construction in the 2020's.

22 pages, 3 figures

Cited by in corpus (15)

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• Partially Acoustic Dark Matter, Interacting Dark Radiation, and Large Scale Structure
• On the spatial distribution of neutral hydrogen in the Universe: bias and shot-noise of the HI Power Spectrum
• Scientific Synergy Between LSST and Euclid
• The impact of galaxy formation on satellite kinematics and redshift-space distortions
• Mass calibration of distant SPT galaxy clusters through expanded weak lensing follow-up observations with HST, VLT & Gemini-South
• Finding eV-scale Light Relics with Cosmological Observables
• The Dynamical Mass of the Coma Cluster from Deep Learning
• Approximate Bayesian Uncertainties on Deep Learning Dynamical Mass Estimates of Galaxy Clusters
• Accurate determination of halo velocity bias in simulations and its cosmological implications
• Ellipticity of Brightest Cluster Galaxies as tracer of halo orientation and weak-lensing mass bias
• The XMM Cluster Survey analysis of the SDSS DR8 redMaPPer Catalogue: Implications for scatter, selection bias, and isotropy in cluster scaling relations
• Reconstruction with velocities
• CLMM: a LSST-DESC Cluster weak Lensing Mass Modeling library for cosmology
• The primordial information content of Rayleigh Anisotropies