Source for the margin of error of curvature

In summary, the margin of error for the flatness of the universe is approximately 2%, and a reputable paper from Oct 2007 has been cited as a reference. Additional data from baryon acoustic oscillation and supernova measurements can improve the accuracy of these estimates, with a tighter confidence interval of -0.0175 to 0.0085 for the curvature parameter.
  • #1
zeebo17
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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!
 
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  • #3
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/map/current/params/owcdm_sz_lens_wmap5_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.
 
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  • #4
Great, thanks!
 

1. What is the source of the margin of error of curvature?

The source of the margin of error of curvature is the measurement or estimation process used to determine the curvature of a particular object or surface. This can include tools such as calipers, protractors, or specialized measuring devices.

2. How is the margin of error of curvature calculated?

The margin of error of curvature is typically calculated by taking multiple measurements or estimations of the curvature and determining the range of values. The margin of error is then determined by taking into account the precision and accuracy of the measuring tools used.

3. Can the margin of error of curvature vary between different measurement methods?

Yes, the margin of error of curvature can vary depending on the measurement method used. Some methods may be more precise or accurate than others, leading to a smaller margin of error. It is important to carefully consider the measurement method when determining the margin of error of curvature.

4. How does the margin of error of curvature impact the overall accuracy of a measurement?

The margin of error of curvature can significantly impact the accuracy of a measurement. A larger margin of error means that the true value of the curvature may fall within a wider range of values, making it less precise. It is important to minimize the margin of error in order to increase the accuracy of the measurement.

5. Can the margin of error of curvature be reduced?

Yes, the margin of error of curvature can be reduced by using more precise and accurate measurement tools, taking multiple measurements, and carefully considering the measurement method. Additionally, increasing the sample size and ensuring proper calibration of the measuring tools can also help reduce the margin of error.

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