Difference between revisions of "Lensing map reconstruction from 02.00 sims w/ and w/o foreground+inhomogeneous noise"
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'''Results''' | '''Results''' | ||
| − | [[File:fig_kmap_input.jpg]] | + | [[File:Example.jpg]] |
| − | [[ | + | [[fig_kmap_input.jpg]] |
| + | [[fig_kmap_recon.jpg]] | ||
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'''Output''' | '''Output''' | ||
Revision as of 07:10, 26 September 2018
Septemper 26, 2018 (Toshiya Namikawa posted)
Summary
In this posting, I show some results of the reconstruction of the CMB lensing kappa map from the signal only or signal+noise+foreground simulations. I used two quadratic estimators, TT and EB, and show that the reconstructed kappa map looks agree with the input kappa map even after including the noise and foreground. However, the reconstruction noise becomes larger at smaller scales of the reconstructed kappa. This could affect the delensing efficiency.
Data
Following [1], I use the following simulation data set:
- The high res masked lensed-LCDM single frequency map /project/projectdirs/cmbs4/data_xx.yy/02.00/cmbs4_02_llcdm_f145_b04_ellmin30_map_2048_mc_0000.fits
- The high res masked lensed-LCDM + noise + foreground single frequency map /project/projectdirs/cmbs4/data_xx.yy/02.00/cmbs4_02.00_comb_f145_b04_ellmin30_map_2048_mc_0000.fits
- Relative hits mask /project/projectdirs/cmbs4/expt_xx/02/rhits/n2048.fits.
- The true input phi map /project/projectdirs/cmb/data/generic/cmb/ffp10/mc/scalar/ffp10_unlensed_scl_cmb_000_tebplm_mc_0000.fits (4th binary table)
Results
fig_kmap_input.jpg
fig_kmap_recon.jpg
Output
