New method of extracting non-Gaussian signals in the CMB

Details New method of extracting non-Gaussian signals in the CMB New method of extracting non-Gaussian signals in the CMB

2001-04-15

arxiv.org/abs/astro-ph/0104246v1

AIP Conf. Proc., 586, 211 (2001)

Astronomy and Astrophysics

Astrophysics

3 pages, 3 figures; to appear in the proceedings of the 20th Texas Symposium on Relativistic Astrophysics, ed. H. Martel and J

Scientific paper

Searching for and charactering the non-Gaussianity (NG) of a given field has been a vital task in many fields of science, because we expect the consequences of different physical processes to carry different statistical properties. Here we propose a new general method of extracting non-Gaussian features in a given field, and then use simulated cosmic microwave background (CMB) as an example to demonstrate its power. In particular, we show its capability of detecting cosmic strings.

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