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- W3216503494 abstract "The Copernican principle (CP), i.e. the assumption that we are not privileged observers of the Universe, is a fundamental tenet of the standard cosmological model. A violation of this postulate implies the possibility that the apparent cosmic acceleration could be explained without the need of a cosmological constant, dark energy or paper we present a new test of the CP relating the distance and the expansion rate, derived via Noether's theorem, which is complementary to other tests found in the literature. We also simulate fiducial data based on upcoming stage IV galaxy surveys and use them to reconstruct the Hubble rate $H(z)$ and the angular diameter distance $d_A(z)$ in order to forecast how well our null test can constrain deviations from the cosmological constant model. We find that our new test can easily rule out several scenarios based on the Lema^{i}tre-Tolman-Bondi void model at confidence of $gtrsim 3sigma$ at middle to high redshifts ($z>0.5$)." @default.
- W3216503494 created "2021-12-06" @default.
- W3216503494 creator A5068527551 @default.
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- W3216503494 date "2021-11-30" @default.
- W3216503494 modified "2023-09-23" @default.
- W3216503494 title "Complementary consistency test of the Copernican principle via Noether’s theorem and machine learning forecasts" @default.
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- W3216503494 doi "https://doi.org/10.1103/physrevd.104.103532" @default.
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