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Testing fundamental cosmological assumptions with Euclid

M. Martinelli, C. J. A. P. Martins, S. Nesseris, I. Tutusaus, A. Avgoustidis, A. Blanchard, S. Camera, C. Carbone, S. Casas, S. Ilic, V. Pettorino, Z. Sakr, D. Sapone, V. Yankelevich

The forthcoming Euclid survey will be able to map the large scale structure with unprecedented precision, with the aim of tightly constraining the standard cosmological model and its most common extensions. The great sensitivity of Euclid can however also be exploited to test our most fundamental assumptions at the basis of the cosmological investigation. In this work we present two recent results of the Euclid Consortium, where forecast Euclid products are used alongside data from other surveys to constrain violation of the distance duality relation and time evolution in the fine-structure constant. We show how Euclid will significantly contribute in constraining these effects, both connected with the presence of new physics beyond the standard cosmological model.

17th edition of the International Conference on Topics in Astroparticle and Underground Physics

Journal of Physics: Conference Series
Volume 2156, Number 1
2022 February

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Faculdade de Ciências da Universidade de Lisboa Universidade do Porto Faculdade de Ciências e Tecnologia da Universidade de Coimbra
Fundação para a Ciência e a Tecnologia COMPETE 2020 PORTUGAL 2020 União Europeia