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[ascl:2212.005] MTNeedlet: Spherical maps filtering

MTNeedlet uses needlets to filter spherical (Healpix) maps and detect and analyze the maxima population using a multiple testing approach. It has been developed with the CMB in mind, but it can be applied to other spherical maps. It pivots around three basic steps: 1.) The calculation of several types of needlets and their possible use to filter maps; 2.) The detection of maxima (or minima) on spherical maps, their visualization and basic analysis; and 3.) The multiple testing approach in order to detect anomalies in the maxima population of the maps with respect to the expected behavior for a random Gaussian map. MTNeedlet relies on Healpy (ascl:2008.022) to efficiently deal with spherical maps.

Code site:
https://github.com/javicarron/mtneedlet
Described in:
https://ui.adsabs.harvard.edu/abs/2019A%26C....2800310C
Bibcode:
2022ascl.soft12005C

Views: 922

ascl:2212.005
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