{"arxiv_id":"1810.06672","title":"Probing $\\Lambda$CDM cosmology with the Evolutionary Map of the Universe survey","abstract":"The Evolutionary Map of the Universe (EMU) is an all-sky survey in radio-continuum which uses the Australian SKA Pathfinder (ASKAP). Using galaxy angular power spectrum and the integrated Sachs-Wolfe effect, we study the potential of EMU to constrain models beyond $\\Lambda$CDM (i.e., local primordial non-Gaussianity, dynamical dark energy, spatial curvature and deviations from general relativity), for different design sensitivities. We also include a multi-tracer analysis, distinguishing between star-forming galaxies and galaxies with an active galactic nucleus, to further improve EMU's potential. We find that EMU could measure the dark energy equation of state parameters around 35\\% more precisely than existing constraints, and that the constraints on $f_{\\rm NL}$ and modified gravity parameters will improve up to a factor $\\sim2$ with respect to Planck and redshift space distortions measurements. With this work we demonstrate the promising potential of EMU to contribute to our understanding of the Universe.","primary_cat":"astro-ph.CO","cross_cats":[],"submitted_at":"2018-10-15T20:37:59+00:00","latest_version":2,"source":"arxiv","source_label":"arXiv","source_url":null,"has_pdf":true,"has_source":false,"verdict":null,"confidence":null,"one_line_summary":null,"novelty_score":null,"correctness_risk":null,"formal_verification":null,"upvotes":0,"downvotes":0,"pith_score":0.0,"inbound_count":4,"_links":{"html":"https://pith.science/paper/1810.06672","verdict":"/api/v1/verdicts/1810.06672"}}