Constraining isocurvature perturbations with cosmic microwave background polarization

被引：86

作者：

Bucher, M ^{[1
]}

Moodley, K ^{[1
]}

Turok, N ^{[1
]}

机构：

[1] Univ Cambridge, Ctr Math Sci, Dept Appl Math & Theoret Phys, Cambridge CB3 0WA, England

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.87.191301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The role of cosmic microwave background polarization data in constraining the presence of primordial isocurvature modes is examined. While MAP will be unable to simultaneously constrain isocurvature modes and cosmological parameters, PLANCK will set strong limits on isocurvature modes. If one allows isocurvature modes, the recently obtained BOOMERANG measurement of the curvature of the Universe fails. However, a comparably sensitive polarization measurement on the same angular scales will permit a determination of the curvature without the prior assumption of adiabaticity.

引用

页码：191301/1 / 191301/4

页数：4

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