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CAMB: equations.f90: what is y(EV%g_ix+1)?
 
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Dahee Lee



Joined: 16 Apr 2018
Posts: 5
Affiliation: Kyungpook National University

PostPosted: April 30 2018  Reply with quote

Hi.
I have just simple question.
In subroutine initial, equations.f90 in CAMB,
what does y(EV%g_ix+1) mean?
I know y(EV%g_ix) is clxg, and this is density perturbation of photon.
But I don't know about y(EV%g_ix+1).
Just differential value about tau?

Any help would be appreciated.

Code:
   
!  Photons
    y(EV%g_ix)=InitVec(i_clxg)
    y(EV%g_ix+1)=InitVec(i_qg)
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Antony Lewis



Joined: 23 Sep 2004
Posts: 1341
Affiliation: University of Sussex

PostPosted: May 01 2018  Reply with quote

It's the L=1 moment (the photon heat flux).
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Dahee Lee



Joined: 16 Apr 2018
Posts: 5
Affiliation: Kyungpook National University

PostPosted: May 01 2018  Reply with quote

Thank you very much for your answer.
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