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- W4376654419 abstract "We study how future Type-Ia supernovae (SNIa) standard candles detected by the Vera C. Rubin Observatory (LSST) can constrain some cosmological models. We use a realistic three-year SNIa simulated dataset generated by the LSST Dark Energy Science Collaboration (DESC) Time Domain pipeline, which includes a mix of spectroscopic and photometrically identified candidates. We combine this data with Cosmic Microwave Background (CMB) and Baryon Acoustic Oscillation (BAO) measurements to estimate the dark energy model parameters for two models -- the baseline $Lambda$CDM and Chevallier-Polarski-Linder (CPL) dark energy parametrization. We compare them with the current constraints obtained from joint analysis of the latest real data from the Pantheon SNIa compilation, CMB from Planck 2018 and BAO. Our analysis finds tighter constraints on the model parameters along with a significant reduction of correlation between $H_0$ and $sigma_8$. We find that LSST is expected to significantly improve upon the existing SNIa data in the critical analysis of cosmological models." @default.
- W4376654419 created "2023-05-17" @default.
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- W4376654419 date "2023-05-15" @default.
- W4376654419 modified "2023-09-27" @default.
- W4376654419 title "Role of Future SNIa Data from LSST in Reinvestigating Cosmological Models" @default.
- W4376654419 doi "https://doi.org/10.48550/arxiv.2305.08786" @default.
- W4376654419 hasPublicationYear "2023" @default.
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