Measurement of Hubble constant: Non-Gaussian Errors in HST key project data

Meghendra Singh, Shashikant Gupta, Ashwini Pandey

Published 2015-06-20Version 1

Random errors in any data set are expected to follow the Gaussian distribution with zero mean. We propose an elegant method based on Kolmogorov-Smirnov statistic to test the above and apply it on the measurement of Hubble constant which determines the expansion rate of the Universe. The measurements were made using Hubble Space Telescope. Our analysis shows that the errors in the above measurement are non-Gaussian.