Temperature-polarization correlations from tensor fluctuations

Journal Article · Wed Nov 15 00:00:00 EST 1995 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.52.R5402· OSTI ID:130740

Crittenden, R G ^[1]; Coulson, D ^[2]; Turok, N G ^[1]

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1. Joseph Henry Laboratory, Princeton University, Princeton, New Jersey 08544 (United States)
2. Department of Physics, University of Pennsylvania, Philadelphia, Pennsylvania 19104 (United States)

We study the polarization-temperature correlations on the cosmic microwave sky resulting from an initial scale-invariant spectrum of tensor (gravity wave) fluctuations, such as those which might arise during inflation. The correlation function has the opposite sign to that for scalar fluctuations on large scales, raising the possibility of a direct determination of whether the microwave anisotropies have a significant tensor component. We briefly discuss the important problem of estimating the expected foreground contamination.

• OSTI ID: 130740
• Journal Information: Physical Review, D, Vol. 52, Issue 10; Other Information: PBD: 15 Nov 1995
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COSMIC RADIATION
POLARIZATION
TEMPERATURE MEASUREMENT
MICROWAVE RADIATION
CORRELATION FUNCTIONS
ANISOTROPY
BACKGROUND RADIATION
ENERGY DENSITY
FLUCTUATIONS
GRAVITATIONAL FIELDS
GRAVITATIONAL WAVES
INFLATION
SPECTRA
TENSORS