Introduction to Cosmology

500

D

TEl

/l [

μK

2 ]

• 0.4


• 0.2

0.2

0.4 Planck 143 +^217

0

1000 1500 2000 2500

l

Figure 8.4The temperature–E-polarization cross-power spectrum as a function of angular
scale (topxaxis) and multipole moment (bottomxaxis) [6]. Reproduced from the freely
accessible Planck Legacy Archive with permission of George Efstathiou, Kavli Institute for
Cosmology, University of Cambridge.