Authors
JA Barroso, SS Larsen, E Palazzi, BJ Maughan, M Seiffert, AN Taylor, A Short, A Ragagnin, JJ Diaz, P Hudelot, H Kurki-Suonio, J-C Salvignol, C Stone, A Fontana, M Baldi, R Laureijs, M Jafariyazani, R Saglia, P Musi, R Barbier, G De Lucia, J Jasche, L Castiblanco, A Tsyganov, E Sellentin, E Lusso, D Bonino, G Despali, V Lindholm, C Grillo, M Schneider, J Berthier, O Corpace, JM Carrasco, M Aguena, F Lepori, I Valdes, DM Walton, AS Borlaff, EM Huff, T Gasparetto, L Vacher, P-S Corasaniti, E Daddi, V Beckmann, C Guerbuez, P Nugent, B Bahr-Kalus, AMC Le Brun, D Elbaz, A Helmi, C Mancini, DB Sanders, B Venemans, A Avgoustidis, A Pisani, L Leuzzi, S Iglesias-Groth, D Delley, S Clesse, S Bardelli, A Philippon, LYA Yung, B Clément, C Cara, J Haapala, S Grandis, J Adamek, DJ Whalen, M Sawicki, K Pedersen, DD Huynh, F Beutler, E Maiorano, Y Jimenez-Teja, AG Sánchez, K Paterson, ME Levi, J Hoar, S Pires, T Lazeyras, F Strafella, MT Botticella, GPS Gibb, D Maino, V Desjacques, F Durret, H Böhringer, M Meneghetti, JE Taylor, S Hemmati, B Fiorini, RE Cole, E Merlin, A Derosa, C Grenet, EM Teixeira, H Gao, H Miyatake, E Borsato, S Paltani, A Khalil, GE Addison, V Kansal, T Müller, F Ducret, A Enia, M Granvik, M Sahlén, N Jeffrey, J-P Beaulieu, J Brinchmann, S Sartori, S Ilić, G Riccio, R Casas, A Rozas-Fernández, PB Lilje, F Oppizzi, A Pezzotta, S Cristiani, RE Angulo, A Renzi, JT Booth, L Reynolds, J Steinwagner, D Magalhaes Oliveira, D Boutigny, SL Finkelstein, P Carrilho, Y Wang, E Sarpa, Y Kang, M Pietroni, G Degni, A Lazanu, P Ntelis, S-M Niemi, O Torbaniuk, H Bouy, K Ichikawa, M Schmidt, S Youles, D Karagiannis, M Balogh, S Borgani, J Hjorth, I Tereno, S Marcin, G Lavaux
Publication date
2024/5/22
Issue
arXiv: 2405.13491
Description
A century of ever improving observations has resulted in a concordance cosmological model that is surprisingly simple: only six numbers are currently needed to describe a wide variety of precise measurements (Planck Collaboration VI 2020). The result, however, is also unsatisfactory because it highlights a serious problem for our understanding of fundamental physics and astronomy: it relies on assumptions about the initial conditions and the theory of gravity, while the nature of the main ingredients, dark matter and dark energy, remain great mysteries. The observational evidence for a largely ‘dark’universe is overwhelming, demonstrating that our theories of particle physics and/or gravity are either incomplete or incorrect. Moreover, we lack compelling theoretical guidance to solve this crisis in fundamental physics (Albrecht et al. 2006; Amendola et al. 2018). Arguably, the biggest challenge is the observation that the expansion of the Universe is accelerating (eg, Riess et al. 1998; Perlmutter et al. 1999; Eisenstein et al. 2005; Betoule et al. 2014). Current explanations range from Einstein’s cosmological constant, dynamic mechanisms such as quintessence, or a modification of the laws of gravity on cosmological scales (see Amendola et al. 2018, for an extensive overview of ideas). To robustly distinguish between these different theoretical ideas, the precision of the measurements needs to improve by at least an order of magnitude, whilst our ability to interpret the data correctly has to advance accordingly if we are to take advantage of the smaller statistical uncertainties. The exquisite observations of the temperature fluctuations in the cosmic …
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JA Barroso, SS Larsen, E Palazzi, BJ Maughan… - 2024