CMBLensed

class pysm3.CMBLensed(nside, cmb_spectra, max_nside=None, cmb_seed=None, apply_delens=False, delensing_ells=None, map_dist=None)

Bases: CMBMap

Lensed CMB

Takes an input unlensed CMB and lensing spectrum from CAMB and uses Taylens to apply lensing, it optionally simulates delensing by suppressing the lensing power at specific scales with the user provided delensing_ells.

Parameters:

cmb_spectrapath

Input text file from CAMB, spectra unlensed

cmb_seedint

Numpy random seed for synfast, set to None for a random seed

apply_delensbool

If true, simulate delensing with taylens

delensing_ellspath

Space delimited file with ells in the first columns and suppression factor (1 for no suppression) in the second column

Methods Summary

run_taylens()

Returns CMB (T, Q, U) maps as a function of observing frequency, nu.

Methods Documentation

run_taylens()

Returns CMB (T, Q, U) maps as a function of observing frequency, nu.

This code is extracted from the taylens code (reference).

Returns:

function – CMB maps.