[yt-users] critical density calculation from yt

Britton Smith brittonsmith at gmail.com
Sat Aug 2 12:49:11 PDT 2014


Hi Brendan,

Cosmology.critical_density returns the total closure density of the
universe at that redshift.  Do you want the mean baryon density?  If so, I
suggest you do:
Cosmology.critical_density(z) * omega_baryon_now * (1 + current_redshift)**3

Britton


On Sat, Aug 2, 2014 at 8:43 PM, Brendan Griffen <brendan.f.griffen at gmail.com
> wrote:

> Hi,
>
> I'm using the cosmology.critical_density(z) calculation from yt and I was
> wondering what is the exact type of critical density? Is it baryon critical
> density? That is what I need.
>
> Thanks.
>
> Brendan
>
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