Tensor microwave background fluctuations for large multipole order

被引:24
|
作者
Flauger, Raphael [1 ]
Weinberg, Steven [1 ]
机构
[1] Univ Texas, Dept Phys, Theory Grp, Austin, TX 78712 USA
来源
PHYSICAL REVIEW D | 2007年 / 75卷 / 12期
基金
美国国家科学基金会;
关键词
D O I
10.1103/PhysRevD.75.123505
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present approximate formulas for the tensor BB, EE, TT, and TE multipole coefficients for large multipole order l center dot. The error in using the approximate formula for the BB multipole coefficients is less than cosmic variance for l center dot > 10. These approximate formulas make various qualitative properties of the calculated multipole coefficients transparent: specifically, they show that, whatever values are chosen for cosmological parameters, the tensor EE multipole coefficients will always be larger than the BB coefficients for all l center dot > 15, and that these coefficients will approach each other for l center dot < 100. These approximations also make clear how these multipole coefficients depend on cosmological parameters.
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页数:6
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