One-shot D_ell cross-check: so_gaussian_fg vs PySM Gaussian foregrounds

so_gaussian_fg_crosscheck.executed.ipynb

so_gaussian_fg_crosscheck_README.md

One-shot cross-check: so_gaussian_fg vs PySM Gaussian foregrounds

This gist contains a one-shot executed notebook comparing the original 1cosmologist/so_gaussian_fg power spectrum implementation against the PySM Gaussian foreground implementation.

Scope:

• D_ell comparison at pivot frequencies for EE/BB.
• Original code has no TT model, so TT is not compared.

Result summary:

• dust_EE max abs/rel diff: 0 / 0
• dust_BB max abs/rel diff: 0 / 0
• sync_EE max abs/rel diff: 0 / 0
• sync_BB max abs/rel diff: 0 / 0

See so_gaussian_fg_crosscheck.executed.ipynb for embedded plots and full details.

so_gaussian_fg_crosscheck_summary.json

{
  "comparison": {
    "dust_EE": {
      "max_abs_diff": 0.0,
      "max_rel_diff": 0.0,
      "ell80_original": 56.0,
      "ell80_pysm": 56.0
    },
    "dust_BB": {
      "max_abs_diff": 0.0,
      "max_rel_diff": 0.0,
      "ell80_original": 28.0,
      "ell80_pysm": 28.0
    },
    "sync_EE": {
      "max_abs_diff": 0.0,
      "max_rel_diff": 0.0,
      "ell80_original": 9.0,
      "ell80_pysm": 9.0
    },
    "sync_BB": {
      "max_abs_diff": 0.0,
      "max_rel_diff": 0.0,
      "ell80_original": 1.6,
      "ell80_pysm": 1.6
    }
  },
  "notes": [
    "Compares D_ell at pivot frequencies for EE/BB.",
    "Original so_gaussian_fg has no TT model.",
    "Uses original GaussianForegroundSimulator.dust_cl/sync_cl code path."
  ]
}