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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• Power spectra<br />
becomes<br />
C ΘΘ<br />
l<br />
where<br />
Power Spectrum<br />
〈Θ ∗ (l)Θ(l ′ )〉 = (2π) 2 δ(l − l ′ ) C ΘΘ<br />
l<br />
〈φ ∗ (l)φ(l ′ )〉 = (2π) 2 δ(l − l ′ ) C φφ<br />
l ,<br />
= 1 − l 2 R ˜ C ΘΘ<br />
l<br />
+<br />
R = 1<br />
4π<br />
d 2 l1<br />
(2π) 2 ˜ C ΘΘ<br />
|l−l1|C φφ<br />
l1 [(l − l1) · l1] 2 ,<br />
dl<br />
l l4 C φφ<br />
l .<br />
,