What are the units of the two columns of the matter power spectrum?

Use of Cobaya. camb, CLASS, cosmomc, compilers, etc.
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YinZhe Ma
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Joined: October 09 2008
Affiliation: University of KwaZulu-Natal

What are the units of the two columns of the matter power sp

Post by YinZhe Ma » November 05 2013

Hello Folks,

I wonder what are the Units of the two columns of the matter power spectrum, output by CAMB?

Are they h/Mpc (for k), and (Mpc/h)^3 (for power) ?

Or no h factor?

In CAMB, it says "Matter power spectrum output against k/h in units of h^{-3} Mpc^3", so it seems that the unit of k is Mpc^(-1), no h factor.

Is there an h factor or not?

Thank you.

Antony Lewis
Posts: 1943
Joined: September 23 2004
Affiliation: University of Sussex
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Re: What are the units of the two columns of the matter powe

Post by Antony Lewis » November 05 2013

This is an h factor.

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