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In physical cosmology, CMBFAST is a computer code, written by Uros Seljak and Matias Zaldarriaga, for computing the anisotropy of the cosmic microwave background. It was the first efficient program to do so, reducing the time taken to compute the anisotropy from several days to a few minutes by using a novel semi-analytic line-of-sight approach.


The CMBFAST website on LAMBDA NASA project page.
U. Seljak and M. Zaldarriaga (1996). "A line-of-sight integration approach to cosmic microwave background anisotropies". Astrophys. J. 469: 437–444. arXiv:astro-ph/9603033. Bibcode:1996ApJ...469..437S. doi:10.1086/177793.

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