omega_lambda parameter in CAMB1.3.2

 Posts: 72
 Joined: May 18 2019
 Affiliation: IRAP
 Contact:
omega_lambda parameter in CAMB1.3.2
Hello,
I just want to check if the parameter omega_lambda is still taken into account into the compute of power spectra in last CAMB1.3.2 version.
Indeed, we can't use any more the option "use_physical = F" as it was the case in the previous version CAMB0.1.7 on which I was working, and so we only work with the following Omega ("little" Omega) :
ombh2 = 0.0226
omch2 = 0.112
omnuh2 = 0.00064
omk = 0
hubble = 70
As you can see, there is no omega_lambda present : is this parameter deduced from "omega_lambda = 1  sum_i omega_i/h^2" ?
Maybe there is a little "omega_lambda" defined somewhere but I didn't see it in the default params_base.ini , Could someone double check it ?
Regards
I just want to check if the parameter omega_lambda is still taken into account into the compute of power spectra in last CAMB1.3.2 version.
Indeed, we can't use any more the option "use_physical = F" as it was the case in the previous version CAMB0.1.7 on which I was working, and so we only work with the following Omega ("little" Omega) :
ombh2 = 0.0226
omch2 = 0.112
omnuh2 = 0.00064
omk = 0
hubble = 70
As you can see, there is no omega_lambda present : is this parameter deduced from "omega_lambda = 1  sum_i omega_i/h^2" ?
Maybe there is a little "omega_lambda" defined somewhere but I didn't see it in the default params_base.ini , Could someone double check it ?
Regards
Last edited by Dournac Fabien on January 30 2022, edited 1 time in total.

 Posts: 1842
 Joined: September 23 2004
 Affiliation: University of Sussex
 Contact:
Re: omega_lambda parameter in CAMB1.3.2
Yes, it is deduced

 Posts: 72
 Joined: May 18 2019
 Affiliation: IRAP
 Contact:
Re: omega_lambda parameter in CAMB1.3.2
ok, thanks and what about the parameter "omk" :
Is it equal to :
[math] ?
with [math]
?
Is it equal to :
[math] ?
with [math]
?

 Posts: 1842
 Joined: September 23 2004
 Affiliation: University of Sussex
 Contact:
Re: omega_lambda parameter in CAMB1.3.2
omk is just $\Omega_K$