期刊
ASTROPHYSICS AND SPACE SCIENCE
卷 357, 期 1, 页码 -出版社
SPRINGER
DOI: 10.1007/s10509-015-2319-2
关键词
Dark energy; Dynamical cosmological models
资金
- DOE [DEFG03-99EP41093]
- NSF [AST-1109275]
- Division Of Astronomical Sciences
- Direct For Mathematical & Physical Scien [1109275] Funding Source: National Science Foundation
We constrain two non-flat time-evolving dark energy cosmological models by using Hubble parameter data, Type Ia supernova apparent magnitude measurements, and baryonic acoustic oscillation peak length scale observations. The inclusion of space curvature as a free parameter in the analysis results in a significant broadening of the allowed range of values of the parameter that governs the time evolution of the dark energy density in these models. While consistent with the standard spatially-flat Lambda CDM cosmological model, these data are also consistent with a range of mildly non-flat, slowly time-varying dark energy models. After marginalizing over all other parameters, these data require the averaged magnitude of the curvature density parameter vertical bar Omega(k0)vertical bar less than or similar to 0.15 at 1 sigma confidence.
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