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)?
• How important is it to have lensing map from the same instrument?
• What sensitivity and resolution do we need for the lensing map?

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(This is the space to add your name and upload figures)

Foregrounds

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• What are our latest estimates of foreground levels post-Planck? (Steve, Raphael...)

Can we make a new version of this figure: Attach:oldFG.png

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• What simulations and tools do we have for forecasting impact on r? (Jacques, Raphael, Stephen F, 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 (Blake Sherwin, Olivier Dore, Chris Sheehy, Josquin Errard, Stephen Feeney)

• 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?