Telecon Notes Sept. 16, 2021

Link to main foregrounds telecons page
Link to logbook

Attendance: Shaul, Ragnhild, Jacques, Charles, Julien, Alex, Colin
Regrets:

1. Commander update
2. Delensing Alex and Colin's delensing figure
3. Paper Tasks

=== Notes (Shaul) ===

• Commander:
  • Unni has produced maps with nside=512 for 90.91, r=0 and r=0.003, 10 simulations for each. She is now doing 90.92.
  • Ragnhild is analyzing 90.91. It takes time to run the code because of the higher resolution.

• Paper:
  • Jacques volunteers to contribute to the introduction
  • Ragnhild began describing the models. She will write also the part about the map simulations.
  • Jacques will write about model98
  • Clem will write about making the maps
  • Request to make a clear distinction between 'Foreground Models' and 'Sky Maps'
    • Clem will write the 'Foreground Models' at least for those that match S4 and the 'Sky Maps'.
  • NILC and Commander techniques - cite other sources heavily. No need to repeat material described elsewhere

• Delensing Alex and Colin's delensing figure
  • Colin ran a harmonic space ILC calculation. Gave noise value post calculation to Alex who ran an iterative delensing code.
  • Deproj0 - Standard ILC, no constraints
  • Deproj1 - ILC constrained to suppress a dust SED
  • Deproj2 - ILC constrained to suppress synchrotron SED
  • Deproj3 - ILC constrained to suppress both
  • Note: everything done in harmonic space. So no spatial information about dust or synchrotron distribution
  • Discussion ensues with MR about what level of delensing he should use.