UMICH-2015: Inflation break-out session 1

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B-modes challenges: foregrounds and de-lensing

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Foregrounds

  • What are our latest estimates of foreground levels post-Planck?
  • What simulations and tools do we have for forecasting impact on r?
  • What are still physical unknowns?
  • Do we need new data at <40 GHz and >230 GHz?
  • How important is large sky area?

Delensing

  • What is the impact of delensing on r, and on nt?
  • How does internal CMB delensing compare to external (e.g. CIB)?
  • What sensitivity and resolution do we need for the lensing map?

Foregrounds

  • What are our latest estimates of foreground levels post-Planck? (Steve, Josquin)
  • What simulations and tools do we have for forecasting impact on r? (Jacques, Raphael, Aurelien, Jo)
  • What are still physical unknowns?
  • Do we need new data at <40 GHz and >230 GHz? (Jo)
  • How important is large sky area?

Delensing

  • What is the impact of delensing on r, and on nt? (Blake Sherwin, Josquin)
  • How does internal CMB delensing compare to external (e.g. CIB)?
  • What sensitivity and resolution do we need for the lensing map?
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