fiducial_cl
Replace CMB power spectra with fiducial values from data files
File |
cmb_lensing/fiducial_cl/fiducial_cl.py |
Attribution |
CosmoSIS Team |
URL |
This module replaces computed CMB power spectra with fiducial values loaded from data files. This is useful for testing or when you want to use specific reference power spectra instead of computed ones.
The module loads TT, TE, EE, BB, and optionally PP (lensing) power spectra from files and replaces the first part of the computed spectra with these fiducial values. The rest can optionally be zeroed out.
Assumptions
Fiducial CMB power spectra are provided as external data files
Setup Parameters
Name |
Type |
Default |
Description |
|---|---|---|---|
data_dir |
str |
data/ |
Directory containing fiducial power spectra files (should contain clTT.txt, clTE.txt, etc.) |
replace_pp |
bool |
False |
Whether to also replace the lensing potential power spectrum |
zero_remainder |
bool |
False |
Whether to zero out spectra beyond the fiducial range |
Input values
Section |
Name |
Type |
Default |
Description |
|---|---|---|---|---|
cmb_cl |
TT |
real 1d |
Temperature power spectrum to be replaced |
|
TE |
real 1d |
Temperature-E-mode cross power spectrum to be replaced |
||
EE |
real 1d |
E-mode power spectrum to be replaced |
||
BB |
real 1d |
B-mode power spectrum to be replaced |
||
PP |
real 1d |
Lensing potential power spectrum to be replaced (if replace_pp=true) |
Output values
Section |
Name |
Type |
Description |
|---|---|---|---|
cmb_cl |
TT |
real 1d |
Modified temperature power spectrum with fiducial values |
TE |
real 1d |
Modified temperature-E-mode cross power spectrum |
|
EE |
real 1d |
Modified E-mode power spectrum with fiducial values |
|
BB |
real 1d |
Modified B-mode power spectrum with fiducial values |
|
PP |
real 1d |
Modified lensing potential power spectrum (if replace_pp=true) |