Temperature and polarization patterns in anisotropic cosmologies

Journal Article · Wed Jun 01 00:00:00 EDT 2011 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2011/06/036· OSTI ID:22277761

Sung, Rockhee; Coles, Peter ^[1]

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1. School of Physics and Astronomy, Cardiff University, Queen's Buildings, 5 The Parade, Cardiff CF24 3AA (United Kingdom)

We study the coherent temperature and polarization patterns produced in homogeneous but anisotropic cosmological models. We show results for all Bianchi types with a Friedman-Robertson-Walker limit (i.e. Types I, V, VII{sub 0}, VII{sub h} and IX) to illustrate the range of possible behaviour. We discuss the role of spatial curvature, shear and rotation in the geodesic equations for each model and establish some basic results concerning the symmetries of the patterns produced. We also give examples of the time-evolution of these patterns in terms of the Stokes parameters I, Q and U.

• OSTI ID: 22277761
• Journal Information: Journal of Cosmology and Astroparticle Physics, Vol. 2011, Issue 06; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ANISOTROPY
COSMOLOGICAL MODELS
COSMOLOGY
GEODESICS
POLARIZATION
SHEAR
STOKES PARAMETERS
SYMMETRY