CAMB: Trying to get count Cls without window function

Use of Cobaya. camb, CLASS, cosmomc, compilers, etc.
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Luca Suter
Posts: 5
Joined: October 06 2023
Affiliation: UniGe

CAMB: Trying to get count Cls without window function

Post by Luca Suter » October 08 2023

Hi! I've been trying to get the hang of CAMB and recreate some of the figures in papers I've read. One of the figures shows the effect of the window function on some of the source terms. I've tried setting the GaussianSourceWindow function to 0 width but that just breaks my code. I've looked around for a way to retrieve the Cl's without the window function but can't find any examples. How can I achieve this?

The figure in question:
Screenshot 2023-10-08 at 12.30.52.png
Screenshot 2023-10-08 at 12.30.52.png (162.14 KiB) Viewed 5415 times

Antony Lewis
Posts: 1943
Joined: September 23 2004
Affiliation: University of Sussex
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Re: CAMB: Trying to get count Cls without window function

Post by Antony Lewis » October 09 2023

CAMB doesn't have a built-in way to get Cl for a single redshift (except for 21cm). You can use a narrow window function.

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