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      The Imprint of Gravitational Waves on the Cosmic Microwave Background

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          Abstract

          Long-wavelength gravitational waves can induce significant temperature anisotropy in the cosmic microwave background. Distinguishing this from anisotropy induced by energy density fluctuations is critical for testing inflationary cosmology and theories of large-scale structure formation. We describe full radiative transport calculations of the two contributions and show that they differ dramatically at angular scales below a few degrees. We show how anisotropy experiments probing large- and small-angular scales can combine to distinguish the imprint due to gravitational waves.

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          Cosmic-structure constraints from a one-degree microwave-background anisotropy experiment

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            Author and article information

            Journal
            25 March 1993
            Article
            10.1103/PhysRevLett.71.324
            astro-ph/9303014
            96faef8b-de45-4d97-af34-ded899374f21
            History
            Custom metadata
            Phys.Rev.Lett.71:324-327,1993
            11 pages, Penn Preprint-UPR-T
            astro-ph hep-ph

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