6dFGS

Compute the likelihood of supplied D_v or fsigma8(z=0.067)

File	likelihood/6dfgs/6dfgs_rsd.py
Attribution	6dFGS Team
URL
Citations	BAO MNRAS 416, 3017 3032 (2011)
	fsigma8 MMNRAS 423, 3430 3444 (2012)

Assumptions

• 6dFGS dataset

Setup Parameters

Name	Type	Default	Description
feedback	bool	False	Whether to print feedback
bao_like	bool	True	Whether to use BAO likelihood
rsd_like	bool	False	Whether to use RSD likelihood
bao_mode	str	rs_dv	Set to “dv” to use the measurement of D_v or to “rs_dv” to use the ratio r_s/D_v
mean	real	457.0 or 0.423	Dv for mode 0 or fsigma8 for mode 1
sigma	real	27.0 or 0.055	Sigma_Dv for mode 0 or sigma_fsigma8
redshift	real	0.106 or 0.067	Redshift of measurements, depending on mode

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		Baryon + cdm density fraction today
	sigma_8	real		Amplitude of linear matter power at 8/h Mpc at z=0
	bias	real		Galaxy bias
	h0	real		Hubble parameter H0/(100 km/s/Mpc)
distances	z	real 1d		Redshifts of samples
	d_m	real 1d		Physical angular diameter distance in Mpc
	h	real 1d		Hubble parameter with in units of Mpc

Output values

Output values

Section	Name	Type	Description
likelihoods	6dfgs_LIKE	real	Likelihood of supplied Dv(z=0.106) or fsigma8(z=0.067)