Late-time ISW in camb

Use of Cobaya. camb, CLASS, cosmomc, compilers, etc.
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Hidde T Jense
Posts: 2
Joined: March 03 2023
Affiliation: Cardiff University

Late-time ISW in camb

Post by Hidde T Jense » March 03 2023

Following this paper, I want to disable the late-time ISW in camb and then add it back into the CMB as the template described in the paper.

Is there a way to remove the late-time ISW easily, or would it require changing the fortran code, and if so, where can I find the inclusion of the ISW that allows for this modification?

For completeness, I looked through the fortran code and found this, but removing the ISW term from this line does not give the expected result (which I presume might be because I am removing all ISW and not just the late-time term?).

Antony Lewis
Posts: 1943
Joined: September 23 2004
Affiliation: University of Sussex

Re: Late-time ISW in camb

Post by Antony Lewis » March 06 2023

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