Question about CAMB and the Hubble parameter

Use of Healpix, camb, CLASS, cosmomc, compilers, etc.
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Savvas Nesseris
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Joined: April 05 2005
Affiliation: UAM/IFT
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Question about CAMB and the Hubble parameter

Post by Savvas Nesseris » May 09 2006

Hi,
I have a simple question for Antony about CAMB. What is the reason CAMB does not allow the user to input values for the hubble parameter other than in the range [20,100] ?

I know it is easy to deactivate it, in camb.f90 in the CAMB_ValidateParams function, but I would like to know the reason why such a restriction was used. Is it perhaps that CAMB is not accurate enough in that area of the parameter space?

Thanks in advance,
Savas Nesseris

Antony Lewis
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Joined: September 23 2004
Affiliation: University of Sussex
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Re: Question about CAMB and the Hubble parameter

Post by Antony Lewis » May 09 2006

It certainly hasn't been tested outside that range (which is, of course, rather a lot of HST sigmas, so usually quite adequate).

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