- #1

ChrisVer

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## Main Question or Discussion Point

Can someone help me understand what information we extract from such kind of figure?

In fact the [itex]C_l^{TT}[/itex] parameter gives us information on the amplitude of the temperature fluctuations [itex]\Delta T/T[/itex]... However I don't understand why there is such a peak formation (1 very large, 2 smaller and 2 even smaller), or why this is given in terms of multipole index [itex]l[/itex].

In fact the [itex]C_l^{TT}[/itex] parameter gives us information on the amplitude of the temperature fluctuations [itex]\Delta T/T[/itex]... However I don't understand why there is such a peak formation (1 very large, 2 smaller and 2 even smaller), or why this is given in terms of multipole index [itex]l[/itex].