H-GAPS (written in C++) measures the cross-angular power spectrum of a galaxy (or galaxy cluster) catalog,  provided the angular positions and a selection mask in Healpix format.

The code  has been developed for the angular clustering analysis of the 2MPZ  galaxy catalog.  Access to the code is temporarily

done by direct request to balaguera at iac.es.

Main features:

 Written in C++

 * Parallelization with OMP 

  * Uses Healpix and GSL

*  User friendly

Main inputs:

 * Galaxy catalog (ascii file): the user specifies the columns

in which angular positions , redshift and other properties (e.g,        luminosities) are written.

 *  Mask: a binary Healpix map indicating observed pixels.

*  Random catalog, in case no mask is available, a random catalog with the same angular selection function of the real catalog can be used as mask.

Outputs:

* The cross and auto power spectrum (if redshifts are available)

* The mixing matrix, used to convolve a theoretical model in order to compare against theoretical predictions.

​

​

​

​

​

​

​