Published 2021
| Version v1
Publication
Snowmass2021 - Letter of interest cosmology intertwined IV: The age of the universe and its curvature
Creators
- Di Valentino E.
- Anchordoqui L. A.
- Akarsu O.
- Ali-Haimoud Y.
- Amendola L.
- Arendse N.
- Asgari M.
- Ballardini M.
- Basilakos S.
- Battistelli E.
- Benetti M.
- Birrer S.
- Bouchet F. R.
- Bruni M.
- Calabrese E.
- Camarena D.
- Capozziello S.
- Chen A.
- Chluba J.
- Chudaykin A.
- Colgain E. O.
- Cyr-Racine F. -Y.
- de Bernardis P.
- de Cruz Perez J.
- Delabrouille J.
- Escamilla-Rivera C.
- Ferte A.
- Finelli F.
- Freedman W.
- Frusciante N.
- Giusarma E.
- Gomez-Valent A.
- Handley W.
- Harrison I.
- Hart L.
- Heavens A.
- Hildebrandt H.
- Holz D.
- Huterer D.
- Ivanov M. M.
- Joudaki S.
- Kamionkowski M.
- Karwal T.
- Knox L.
- Kumar S.
- Lamagna L.
- Lesgourgues J.
- Lucca M.
- Marra V.
- Masi S.
- Matarrese S.
- Mazumdar A.
- Melchiorri A.
- Mena O.
- Mersini-Houghton L.
- Miranda V.
- Moreno-Pulido C.
- Mota D. F.
- Muir J.
- Mukherjee A.
- Niedermann F.
- Notari A.
- Nunes R. C.
- Pace F.
- Paliathanasis A.
- Palmese A.
- Pan S.
- Paoletti D.
- Pettorino V.
- Piacentini F.
- Poulin V.
- Raveri M.
- Riess A. G.
- Salzano V.
- Saridakis E. N.
- Sen A. A.
- Shafieloo A.
- Shajib A. J.
- Silk J.
- Silvestri A.
- Sloth M. S.
- Smith T. L.
- Sola Peracaula J.
- van de Bruck C.
- Verde L.
- Visinelli L.
- Wandelt B. D.
- Wang D.
- Wang J. -M.
- Yadav A. K.
- Yang W.
Contributors
Others:
- Di Valentino, E.
- Anchordoqui, L. A.
- Akarsu, O.
- Ali-Haimoud, Y.
- Amendola, L.
- Arendse, N.
- Asgari, M.
- Ballardini, M.
- Basilakos, S.
- Battistelli, E.
- Benetti, M.
- Birrer, S.
- Bouchet, F. R.
- Bruni, M.
- Calabrese, E.
- Camarena, D.
- Capozziello, S.
- Chen, A.
- Chluba, J.
- Chudaykin, A.
- Colgain, E. O.
- Cyr-Racine, F. -Y.
- de Bernardis, P.
- de Cruz Perez, J.
- Delabrouille, J.
- Escamilla-Rivera, C.
- Ferte, A.
- Finelli, F.
- Freedman, W.
- Frusciante, N.
- Giusarma, E.
- Gomez-Valent, A.
- Handley, W.
- Harrison, I.
- Hart, L.
- Heavens, A.
- Hildebrandt, H.
- Holz, D.
- Huterer, D.
- Ivanov, M. M.
- Joudaki, S.
- Kamionkowski, M.
- Karwal, T.
- Knox, L.
- Kumar, S.
- Lamagna, L.
- Lesgourgues, J.
- Lucca, M.
- Marra, V.
- Masi, S.
- Matarrese, S.
- Mazumdar, A.
- Melchiorri, A.
- Mena, O.
- Mersini-Houghton, L.
- Miranda, V.
- Moreno-Pulido, C.
- Mota, D. F.
- Muir, J.
- Mukherjee, A.
- Niedermann, F.
- Notari, A.
- Nunes, R. C.
- Pace, F.
- Paliathanasis, A.
- Palmese, A.
- Pan, S.
- Paoletti, D.
- Pettorino, V.
- Piacentini, F.
- Poulin, V.
- Raveri, M.
- Riess, A. G.
- Salzano, V.
- Saridakis, E. N.
- Sen, A. A.
- Shafieloo, A.
- Shajib, A. J.
- Silk, J.
- Silvestri, A.
- Sloth, M. S.
- Smith, T. L.
- Sola Peracaula, J.
- van de Bruck, C.
- Verde, L.
- Visinelli, L.
- Wandelt, B. D.
- Wang, D.
- Wang, J. -M.
- Yadav, A. K.
- Yang, W.
Description
A precise measurement of the curvature of the Universe is of prime importance for cosmology since it could not only confirm the paradigm of primordial inflation but also help in discriminating between different early-Universe scenarios. Recent observations, while broadly consistent with a spatially flat standard Λ Cold Dark Matter (ΛCDM) model, show tensions that still allow (and, in some cases, even suggest) a few percent deviations from a flat universe. In particular, the Planck Cosmic Microwave Background power spectra, assuming the nominal likelihood, prefer a closed universe at more than 99% confidence level. While new physics could be at play, this anomaly may be the result of an unresolved systematic error or just a statistical fluctuation. However, since positive curvature allows a larger age of the Universe, an accurate determination of the age of the oldest objects provides a smoking gun in confirming or falsifying the current flat ΛCDM model.
Additional details
Identifiers
- URL
- https://hdl.handle.net/11567/1104523
- URN
- urn:oai:iris.unige.it:11567/1104523
Origin repository
- Origin repository
- UNIGE