Model independent expansion history from supernovae: Cosmology versus systematics
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Authors
L'Huillier, Benjamin
Shafieloo, Arman
Linder, Eric V.
Kim, Alex G.
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NURIS; Energetic Cosmos Laboratory
Abstract
We examine the Pantheon supernovae distance data compilation in a model independent analysis to test the validity of cosmic history reconstructions beyond the concordance ΛCDM cosmology. Strong deviations are allowed by the data at z≳1 in the reconstructed Hubble parameter, Om diagnostic, and dark energy equation of state. We explore three interpretations: 1) possibility of the true cosmology being far from ΛCDM, 2) supernovae property evolution, and 3) survey selection effects.
Description
Energetic Cosmos Laboratory. ECL Publication, 2019
Citation
L’Huillier, B., Shafieloo, A., Linder, E.V. &Kim, A.G. (2019) Model independent expansion history from supernovae: Cosmology versus systematics. The 2nd international conference of the Energetic Cosmos Laboratory (ECL) at Nazarbayev University. Retrieved from https://arxiv.org/pdf/1812.03623.pdf
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