Secondary CMB Anisotropy - Wayne Hu's Tutorials
Secondary CMB Anisotropy - Wayne Hu's Tutorials
Secondary CMB Anisotropy - Wayne Hu's Tutorials
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Constraints on Lensing Observables<br />
• Lensing observables in T,E are limited by <strong>CMB</strong> sample variance<br />
• Lensing observables in B are limited by lens sample variance<br />
• B-modes require 10x as much sky at high signal-to-noise or<br />
3x as much sky at the optimal signal-to-noise with ∆ P=4.7uK'<br />
f sky 1/2 σ(Θ1)<br />
f sky 1/2 σ(Θ2)<br />
Smith, Hu & Kaplinghat (2006)<br />
10 -1<br />
10 -2<br />
1<br />
10 -1<br />
10 -2<br />
10 -3<br />
T,E modes<br />
B modes<br />
true<br />
10<br />
Gaussian<br />
lens sample variance<br />
lens sample variance<br />
noise ∆p (µK')<br />
Gaussian<br />
100
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