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[ascl:1402.026] athena: Tree code for second-order correlation functions

athena is a 2d-tree code that estimates second-order correlation functions from input galaxy catalogues. These include shear-shear correlations (cosmic shear), position-shear (galaxy-galaxy lensing) and position-position (spatial angular correlation). Written in C, it includes a power-spectrum estimator implemented in Python; this script also calculates the aperture-mass dispersion. A test data set is available.

Code site:
http://www.cosmostat.org/athena.html
Appears in:
http://adsabs.harvard.edu/abs/2002A%26A...396....1S
Bibcode:
2014ascl.soft02026K

ascl:1402.026
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