B. Racine
In this posting we run the maximum likelihood search on the DC5, which mimics the BK15 dataset.
This posting is a quick closed loop test where we analyze a BK15 like data challenge.
In this previous posting, we obtained noise parameters from the published BK15 bandpowers.
In this other posting, we showed the power spectra (final pager) of the simulations generated using these parameters, for the Gaussian foreground case (05.00).
Note that an analysis of the BK only data was reported in the BK15 paper for the CosmoMC analysis, see for instance figure 18 in the appendix.
Here we fix the lensing amplitude to 1, and we don't allow for decorrelation. We also impose the Planck priors on the \(\beta\) parameters (see table 1).
There are a few notable differences between the BK15 simulations and the 05.00 ones:
BK sims | S4 sims | Priors for ML search | |
---|---|---|---|
\(r\) | 0 | 0 | Flat: [-0.5,0.5] |
\(A_d\) [\(\mu K^2\)] | 3.75 | 4.25 | Flat: [-2,150] |
\(\beta_d\) | 1.6 | 1.6 | Flat: [0.8,2.4] and Gaussian \(\mathcal{N}(1.6,0.1)\) |
\(A_s\) [\(\mu K^2\)] | 0 | 3.8 | Flat: [-2,15] |
\(\beta_s\) | NA | -3.1 | Flat: [-4.5,-1.5] and Gaussian \(\mathcal{N}(-3.1,0.3)\) |
\(\alpha_d\) | -0.4 | -0.4 | Flat: [-1,0] |
\(\alpha_s\) | NA | -0.6 | Flat: [-1,0] |
\(\epsilon\) | 0 | 0 | Flat: [-1,1] |
In Figure 1, we report the histograms of 8 free parameters, for the 499 BK15 simulations, as well as for the 150 (r=0) simulations
Comments on the figure: