where [math] is CMB temperature anisotropies over angular. (Just TT)
This can be done by CAMB module correlations
Then I plotted the figure between [math] and [math]. (TT~[math])
Code: Select all
from camb import correlations pars.set_cosmology(H0=67.5, ombh2=0.022, omch2=0.122, mnu=0.06, omk=0, tau=0.06) pars.InitPower.set_params(As=2.1e-9, ns=0.9682, r=0) pars.set_for_lmax(4000, lens_potential_accuracy=1); results = camb.get_results(pars) lensed_cl = results.get_lensed_scalar_cls() corrs, xvals, weights = correlations.gauss_legendre_correlation(lensed_cl)
Unfortunately, I found that the result is too small. The peak is smaller than the standard model when [math] is 75 degree. Besides, I calculated the [math] and the result is 600 approximately, lower than the standard value 42496.5 .
I am wondering to know the result given by CAMB is so small?
Thank you very much.