Cosmological test of local position invariance from the asymmetric galaxy clustering
In: ISSN: 0035-8711, 2023
Online
academicJournal
Zugriff:
International audience ; The local position invariance (LPI) is one of the three major pillars of Einstein equivalence principle, ensuring the space-time independence on the outcomes of local experiments. The LPI has been tested by measuring the gravitational redshift effect in various depths of gravitational potentials. We propose a new cosmological test of the LPI by observing the asymmetry in the cross-correlation function between different types of galaxies, which predominantly arises from the gravitational redshift effect induced by the gravitational potential of halos at which the galaxies reside. We show that the ongoing and upcoming galaxy surveys can give a fruitful constraint on the LPI-violating parameter, $\alpha$, at distant universes (redshift $z\sim0.1-1.8$) over the cosmological scales (separation $s\sim5-10\, {\rm Mpc}/h$) that have not yet been explored, finding that the expected upper limit on $\alpha$ can reach $0.03$.
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Cosmological test of local position invariance from the asymmetric galaxy clustering
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Autor/in / Beteiligte Person: | Saga, Shohei ; Taruya, Atsushi ; Breton, Michel-Andrès ; Rasera, Yann ; Laboratoire Univers et Théories (LUTH (UMR_8102)) ; Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris ; Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS) ; Laboratoire d'Astrophysique de Marseille (LAM) ; Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS) |
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Zeitschrift: | ISSN: 0035-8711, 2023 |
Veröffentlichung: | HAL CCSD ; Oxford University Press (OUP): Policy P - Oxford Open Option A, 2023 |
Medientyp: | academicJournal |
DOI: | 10.1093/mnras/stad2191 |
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