source for the margin of error of curvature

zeebo17

I have seen in a few places around the web that the margin of error for the flatness of the universe is about 2%, but haven't seen any citations. Could anyone refer me to a reputable paper that I could cite that mentions what this margin of error is?

Thanks!

nicksauce

A quick arxiv search gave me this paper from Oct 2007:

http://arxiv.org/abs/astro-ph/0703780

Chalnoth

You can get better constraints by adding baryon acoustic oscillation and supernova data to the WMAP result. They estimate the following parameters for w = constant:
http://lambda.gsfc.nasa.gov/product/..._bao_snall.cfm

The curvature parameter is:
[tex]-0.0175 < \Omega_k < 0.0085[/tex] (95% confidence)

...which is a significantly tighter confidence interval than is given in the above paper.

zeebo17

Great, thanks!

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zeebo17	source for the margin of error of curvature I have seen in a few places around the web that the margin of error for the flatness of the universe is about 2%, but haven't seen any citations. Could anyone refer me to a reputable paper that I could cite that mentions what this margin of error is? Thanks!

nicksauce Recognitions: Homework Help Science Advisor	A quick arxiv search gave me this paper from Oct 2007: http://arxiv.org/abs/astro-ph/0703780

Chalnoth Recognitions: Science Advisor	You can get better constraints by adding baryon acoustic oscillation and supernova data to the WMAP result. They estimate the following parameters for w = constant: http://lambda.gsfc.nasa.gov/product/..._bao_snall.cfm The curvature parameter is: [tex]-0.0175 < \Omega_k < 0.0085[/tex] (95% confidence) ...which is a significantly tighter confidence interval than is given in the above paper.