CAMB: massive neutrino

Use of Healpix, camb, CLASS, cosmomc, compilers, etc.
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Dahee Lee
Posts: 16
Joined: April 16 2018
Affiliation: Kyungpook National University

CAMB: massive neutrino

Post by Dahee Lee » June 03 2018

I'm beginner in camb.
I have just simple question.
For example, density perturbation of photon is y(EV%g_ix), CDM is y(3), baryon is y(4), massless neutrino is y(EV%r_ix).
But I can't find density perturbation of massive neutrino.
How can I get that?
Or How can I get total neutrino density perturbation?

Any help would be appreciated.

Antony Lewis
Posts: 1547
Joined: September 23 2004
Affiliation: University of Sussex

Re: CAMB: massive neutrino

Post by Antony Lewis » June 04 2018

The massive neutrino density perturbation is calculated e.g. as clxnu in equations.f90 (search for EV%OutputTransfer(Transfer_nu) ), and in the matter transfer function outputs file. You can also get this easily from the python interface.

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