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Cosmic Microwave Background Radiation Anisotropy Induced by Cosmic Strings

B. Allen, Robert R. Caldwell, E. P. S. Shellard, Albert Stebbins, S. Veeraraghavan

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Abstract

ABSTRACT. We report on a current investigation of the anisotropy pattern induced by cosmic strings on the cosmic microwave background radiation (MBR). We have numerically evolved a network of cosmic strings from a redshift of Z = 100 to the present and calculated the anisotropies which they induce. Based on a limited number of realizations, we have compared the results of our simulations with the observations of the COBE-DMR experiment. We have obtained a preliminary estimate of the string mass-per-unit-length µ in the cosmic string scenario. 1.

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ABSTRACT. We report on a current investigation of the anisotropy pattern induced by cosmic strings on the cosmic microwave background radiation (MBR). We have numerically evolved a network of cosmic strings from a redshift of Z = 100 to the present and calculated the anisotropies which they induce. Based on a limited number of realizations, we have compared the results of our simulations with the observations of the COBE-DMR experiment. We have obtained a preliminary estimate of the string mass-per-unit-length µ in the cosmic string scenario. 1.

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Available abstract

ABSTRACT. We report on a current investigation of the anisotropy pattern induced by cosmic strings on the cosmic microwave background radiation (MBR). We have numerically evolved a network of cosmic strings from a redshift of Z = 100 to the present and calculated the anisotropies which they induce. Based on a limited number of realizations, we have compared the results of our simulations with the observations of the COBE-DMR experiment. We have obtained a preliminary estimate of the string mass-per-unit-length µ in the cosmic string scenario. 1.

Key concepts: Cosmic microwave background, Cosmic string, Physics, Anisotropy, Redshift, String (physics), Cosmic ray, COSMIC cancer database

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