An Evaluation of Cosmological Models from the Expansion and Growth of Structure Measurements
Here, we compare a large suite of theoretical cosmological models to observational data from the cosmic microwave background, baryon acoustic oscillation measurements of expansion, Type Ia supernova measurements of expansion, redshift space distortion measurements of the growth of structure, and the local Hubble constant. Our theoretical models include parametrizations of dark energy as well as physical models of dark energy and modified gravity. We determine the constraints on the model parameters, incorporating the redshift space distortion data directly in the analysis. To determine whether models can be ruled out, we evaluate the pvalue (the probability under the model of obtaining data as bad or worse than the observed data). In our comparison, we find the wellknown tension of H _{0} with the other data; no model resolves this tension successfully. Among the models we consider, the largescale growth of structure data does not affect the modified gravity models as a category particularly differently from dark energy models; it matters for some modified gravity models but not others, and the same is true for dark energy models. We compute predicted observables for each model under current observational constraints, and identify models for which future observational constraints will be particularly informative.
 Authors:

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 New York Univ. (NYU), NY (United States). Dept. of Physics and Center for Cosmology and Particle Physics
 Brookhaven National Lab. (BNL), Upton, NY (United States)
 Publication Date:
 Report Number(s):
 BNL2034972018JAAM
Journal ID: ISSN 15384357
 Grant/Contract Number:
 SC0012704; F8670; NSFAST1615997; NSFAST 1109432
 Type:
 Accepted Manuscript
 Journal Name:
 The Astrophysical Journal (Online)
 Additional Journal Information:
 Journal Name: The Astrophysical Journal (Online); Journal Volume: 850; Journal Issue: 2; Journal ID: ISSN 15384357
 Publisher:
 Institute of Physics (IOP)
 Research Org:
 Brookhaven National Laboratory (BNL), Upton, NY (United States)
 Sponsoring Org:
 USDOE Office of Science (SC), High Energy Physics (HEP) (SC25); National Science Foundation (NSF)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 79 ASTRONOMY AND ASTROPHYSICS; large scale structure of universe; dark energy
 OSTI Identifier:
 1433939
Zhai, Zhongxu, Blanton, Michael, Slosar, Anze, and Tinker, Jeremy. An Evaluation of Cosmological Models from the Expansion and Growth of Structure Measurements. United States: N. p.,
Web. doi:10.3847/15384357/aa9888.
Zhai, Zhongxu, Blanton, Michael, Slosar, Anze, & Tinker, Jeremy. An Evaluation of Cosmological Models from the Expansion and Growth of Structure Measurements. United States. doi:10.3847/15384357/aa9888.
Zhai, Zhongxu, Blanton, Michael, Slosar, Anze, and Tinker, Jeremy. 2017.
"An Evaluation of Cosmological Models from the Expansion and Growth of Structure Measurements". United States.
doi:10.3847/15384357/aa9888.
@article{osti_1433939,
title = {An Evaluation of Cosmological Models from the Expansion and Growth of Structure Measurements},
author = {Zhai, Zhongxu and Blanton, Michael and Slosar, Anze and Tinker, Jeremy},
abstractNote = {Here, we compare a large suite of theoretical cosmological models to observational data from the cosmic microwave background, baryon acoustic oscillation measurements of expansion, Type Ia supernova measurements of expansion, redshift space distortion measurements of the growth of structure, and the local Hubble constant. Our theoretical models include parametrizations of dark energy as well as physical models of dark energy and modified gravity. We determine the constraints on the model parameters, incorporating the redshift space distortion data directly in the analysis. To determine whether models can be ruled out, we evaluate the pvalue (the probability under the model of obtaining data as bad or worse than the observed data). In our comparison, we find the wellknown tension of H0 with the other data; no model resolves this tension successfully. Among the models we consider, the largescale growth of structure data does not affect the modified gravity models as a category particularly differently from dark energy models; it matters for some modified gravity models but not others, and the same is true for dark energy models. We compute predicted observables for each model under current observational constraints, and identify models for which future observational constraints will be particularly informative.},
doi = {10.3847/15384357/aa9888},
journal = {The Astrophysical Journal (Online)},
number = 2,
volume = 850,
place = {United States},
year = {2017},
month = {12}
}