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| 20180424_dc_maps [2018/04/24 17:21] – pryke | 20180424_dc_maps [2019/01/18 14:38] (current) – pryke | ||
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| + | **Data Challenge Maps I** | ||
| + | |||
| Apr 24 2018, Clem Pryke | Apr 24 2018, Clem Pryke | ||
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| * 93=PySM a2d7f1s3 | * 93=PySM a2d7f1s3 | ||
| * 96=Brandon' | * 96=Brandon' | ||
| + | * cmb = links to the cl's and alm's from which the LCDM component are generated (shared with Plank ffp10 sims) | ||
| Under expt_xx we just have single file 90/ | Under expt_xx we just have single file 90/ | ||
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| a) To run full sky (unmasked) harmonic analysis - no need to deal with E/B mixing problems. | a) To run full sky (unmasked) harmonic analysis - no need to deal with E/B mixing problems. | ||
| b) The dust and synchrotron SED's are simple and uniform over the full sky so they can | b) The dust and synchrotron SED's are simple and uniform over the full sky so they can | ||
| - | be fit as such. | + | be fit as such. beta_dust=1.6, |
| 90.91, 90.92, 90.93 and 90.96 contains the combined maps for the proper sky models. | 90.91, 90.92, 90.93 and 90.96 contains the combined maps for the proper sky models. | ||
| - | Here are plots of the four sky models with Planck real sky for comparison. | + | There are multiple realizations of each xx.yy. |
| + | For 90.00 there is a fresh foreground realization for each one. | ||
| + | For 90.9y only a single foreground realization is available so this is re-used and | ||
| + | only the LCDM, noise etc vary. | ||
| + | In both cases every even numbered realization has r=0.003 tensors injected. | ||
| + | |||
| + | Here are power spectrum check plots at low/ | ||
| + | To get a sensible looking plot for the foreground one has to cut out | ||
| + | the galactic plane. | ||
| + | The combined maps is not shown as this just looks like the foreground. | ||
| + | The task is take the set of multi band maps, clean out the foreground, | ||
| + | and take the power spectrum with an estimator which preserves E/B purity | ||
| + | on the cut sky. | ||
| + | Good luck! | ||
| + | |||
| + | {{: | ||
| + | {{: | ||
| + | {{: | ||
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| + | Here are plots of the four sky models with Planck real sky for comparison | ||
| + | probably open them as tabs in your browser and flips between. | ||
| + | We see that MHD model looks something like the galaxy but lacks the synchrotron spurs. | ||
| - | {{: | + | {{: |
| + | {{: | ||
| + | {{: | ||
| + | {{: | ||
| + | {{: | ||