Code useful for cross-correlation cosmological analyses.
from xcorr.spectra import spectra as sp
...
Cgg = sp.MapsReader(gmask, gmask, False, False, binning, nside, lmax_sht = lmax, filename = filename)
...
ggcounts = Cgg(deltagk, deltagh, alpha, alpha, lmax = lmax)
...
The above code defines an object, based on the popular and well tested pymaster
, and it take the spectrum of two fields, accounting for any extra rescaling alpha
, up to some lmax
.
Sometimes it is important to have a high-resolution of the maps, while needing only to do calculations up to some mode.
For a big project using this, see the ACT DR6 CMB lensing cross-correlation with DES Y3 Maglim surveys.
Will list in the future the most important packages, projects or contributions to this package.