extract_growth¶
returns growth factor and growth rate by examining small-scale P(k)
File |
structure/extract_growth/extract_growth.py |
Attribution |
CosmoSIS Team |
URL |
This simple module extracts the the linear growth factor D, and linear growth rate, from the matter power spectra It takes the z spacing from the input module
Assumptions¶
Nonlinear or linear P(k,z) calculated at a small k value.
Setup Parameters¶
Name |
Type |
Default |
Description |
|---|---|---|---|
input_section |
str |
matter_power_lin |
Which input section (spectrum) to use |
output_section |
str |
growth_parameters |
Which output section to put the results in |
Input values¶
Section |
Name |
Type |
Default |
Description |
|---|---|---|---|---|
matter_power_nl |
k_h |
real 1d |
Wavenumbers of samples |
|
z |
real 1d |
Redshifts of samples |
||
p_k |
real 2d |
Matter power spectrum samples |
Output values¶
Section |
Name |
Type |
Description |
|---|---|---|---|
growth_parameters |
d_z |
real 1d |
Linear growth factor D(z) |
f_z |
real 1d |
Linear growth rate f(z) |
|
z |
real 1d |
Redshift of samples |