mgs¶
Compute the likelihood of MGS BAO and FS as distributed by eBOSS DR16
File |
likelihood/eboss_dr16/mgs/mgs.py |
Attribution |
M |
G |
|
S |
|
t |
|
e |
|
a |
|
m |
|
, |
|
e |
|
B |
|
O |
|
S |
|
S |
|
D |
|
R |
|
1 |
|
6 |
|
t |
|
e |
|
a |
|
m |
|
URL |
https://svn.sdss.org/public/data/eboss/DR16cosmo/tags/v1_0_0/likelihoods/ |
Citations |
|
This module computes the likelihood of MGS, using f*sigma8 and D_v/r_s measurements.
Assumptions¶
Gaussian likelihood
Setup Parameters¶
Name |
Type |
Default |
Description |
|---|---|---|---|
data_file |
str |
sdss_MGS_FSBAO_DVfs8.txt |
Path to file with measured D_v(zeff),fsig8(zeff) values |
cov_file |
str |
sdss_MGS_FSBAO_DVfs8_covtot.txt |
Path to covariance matrix file |
rs_fiducial |
real |
147.8 |
Fiducial value of sound horizon at last scattering used in making data |
verbose |
bool |
False |
Whether to print extra output |
Input values¶
Section |
Name |
Type |
Default |
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 |
||
cosmological_parameters |
omega_m |
real |
Matter density fraction of critical |
|
sigma_8 |
real |
Amplitude of linear matter power at 8/h Mpc at z=0 |
||
h0 |
real |
Hubble parameter H0 / (100 km/s/Mpc) |
||
distances |
z |
real 1d |
Redshifts of samples |
|
d_a |
real 1d |
Angular diameter distance in Mpc |
||
h |
real 1d |
Hubble parameter with in units of Mpc |
Output values¶
Section |
Name |
Type |
Description |
|---|---|---|---|
likelihoods |
mgs_like |
real |
Likelihood of Dv and fsigma8 at z=0.15 |