Hunting for statistical anisotropy in tensor modes with B -mode observations

Takashi Hiramatsu, Shuichiro Yokoyama, Tomohiro Fujita, Ippei Obata

研究成果: Article査読

6 被引用数 (Scopus)

抄録

We investigate the possibility of constraining statistical anisotropies of the primordial tensor perturbations by using future observations of the cosmic microwave background (CMB) B-mode polarization. By parametrizing a statistically anisotropic tensor power spectrum as Ph(k)=Ph(k)ngncosnθk, where θk is an angle of the direction of k^=k/k from a preferred direction, we find that it is possible for future B-mode observations such as CMB-S4 to detect the tensor statistical anisotropy at the level of gn∼O(0.1).

本文言語English
論文番号083522
ジャーナルPhysical Review D
98
8
DOI
出版ステータスPublished - 2018 10 15
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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