NGsims

Non-Gaussian Simulations

NGsims

We have developed a method of creating statistically-isotropic non-Gaussian maps of CMB temperature fluctuations. The code for creating simulations for both the full sky (using the Healpix pixelisation scheme) and for the flat-sky can be downloaded now.

Code for flat sky simulations

The full version of the paper describing this method and the statistical properties of the resulting maps is available here.

A summary of the method with a series of items describing the logical steps taken is available here.

Please include an appropriate acknowledgement in any publications based on work that has made use of this package - 'NGsims'

and cite Rocha et al. (2004), preprint astro-ph/0406136, published 2005, MNRAS, 357, 1-11, by `Graca Rocha, M.P. Hobson, Sarah Smith, Pedro Ferreira and Anthony Challinor', 2004.

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Created: Tue Jun 8 11:23:56 BST 2004

Last modified: Tue Sep 28 16:19:00 BST 2004