Computing 21cm angular power spectra for 0 < z < 5 with the std. CAMB_source?

Use of Cobaya. camb, CLASS, cosmomc, compilers, etc.
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Patrice Okouma
Posts: 19
Joined: November 05 2009
Affiliation: University of Cape Town

Computing 21cm angular power spectra for 0 < z < 5 wi

Post by Patrice Okouma » February 25 2014

Dear all,
I am quite new to HI intensity mapping issues and I am having a very naive question plz: Does computing the 21cm angular power spectra for 0 < z < 5 require radical changes to the "standard" CAMB_source as per Lewis & Challinor. If yes, could you point me to a significant change required.
Thanks & regards
Patrice

Antony Lewis
Posts: 1941
Joined: September 23 2004
Affiliation: University of Sussex
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Re: Computing 21cm angular power spectra for 0 < z <

Post by Antony Lewis » February 26 2014

Yes, CAMB sources only does the dark ages up to the onset of reionization. Thereafter the spin temperature evolution is much more complicated and cannot be determined in linear theory.

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