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Measuring the geometry of the universe in the presence of isocurvature modes.

Abstract:

The cosmic microwave background (CMB) anisotropy constrains the geometry of the Universe because the positions of the acoustic peaks of the angular power spectrum depend strongly on the curvature of three-dimensional space. In this Letter we exploit current observations to determine the geometry in the presence of isocurvature modes. Most previous analyses assumed that the primordial perturbations were adiabatic. A priori one might expect that allowing isocurvature modes would substantially d...

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Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Astrophysics
Role:
Author
Journal:
Physical review letters
Volume:
95
Issue:
26
Pages:
261303
Publication date:
2005-12-05
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:e3762967-6345-4417-b04f-923af9bc45b2
Source identifiers:
10671
Local pid:
pubs:10671
Language:
English
Keywords:

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