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arXiv · 1605.02483

New Model-independent Method to Test the Curvature of the Universe

H. Yu·F. Y. Wang
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Abstract

We propose a new model-independent method to test the cosmic curvature by comparing the proper distance and transverse comoving distance. Using the measurements of Hubble parameter $H(z)$ and angular diameter distance $d_A$, the cosmic curvature parameter $\Omega_K$ is constrained to be $-0.09\pm0.19$, which is consistent with a flat universe. We also use Monte Carlo simulation to test the validity and efficiency, and find that our method can give a reliable and efficient constraint on cosmic curvature. Compared with other model-independent methods testing the cosmic curvature, our method can avoid some drawbacks and give a better constraint.

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H. Yu, F. Y. Wang. 2016-05-09. New Model-independent Method to Test the Curvature of the Universe. https://doi.org/10.3847/0004-637x/828/2/85

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