Tools to detect non-Gaussianity in non-standard cosmological models

Details Tools to detect non-Gaussianity in non-standard cosmological models Tools to detect non-Gaussianity in non-standard cosmological models

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002spie.4847...62g&link_type=abstract

Astronomical Data Analysis II. Edited by Starck, Jean-Luc; Murtagh, Fionn D. Proceedings of the SPIE, Volume 4847, pp. 62-73

Astronomy and Astrophysics

Astronomy

Scientific paper

We present a method to detect non-Gaussianity in CMB temperature fluctuations maps, based on the spherical Mexican Hat wavelet. We have applied this method to artificially generated non-Gaussian maps using the Edgeworth expansion. Analysing the skewness and kurtosis of the wavelet coefficients in contrast to Gaussian simulations, the Mexican Hat is more efficient in detecting non-Gaussianity than the spherical Haar wavelet for all different leves of non-Gaussianity introduced. These results are relevant to test the Gaussian character of the CMB data. The method has also been applied to non-Gaussian maps generated by introducing an additional quadratic term in the gravitational potential.

Affiliated with

Also associated with

No associations

Rating

Tools to detect non-Gaussianity in non-standard cosmological models does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Tools to detect non-Gaussianity in non-standard cosmological models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tools to detect non-Gaussianity in non-standard cosmological models will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1310921