The cosmological microwave background radiation, cosmic and superconducting strings

Details The cosmological microwave background radiation, cosmic and superconducting strings The cosmological microwave background radiation, cosmic and superconducting strings

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phlb..219..413s&link_type=abstract

Physics Letters B, Volume 219, Issue 4, p. 413-418.

Physics

9

Scientific paper

We study different kinds of anisotropies and distortions in the cosmological background radiation due to cosmic and superconducting strings: (i) temperature angular anisotropy by loop decay into gravitational waves and (ii) spectral distortions due to electromagnetic energy emission. We relate distortions produced by loops indifferent epochs of their evolution. We confront these predictions with observations, in particular with the submillimeter excess recently observed by the Nagoya-Berkeley experiment. This allows us to place constraints both of the string parameter Gμ and on the parameters governing loop evolution.
UA 336 Laboratoire Associé au CNRS, Observatoire de Meudon et Ecole Normale Superieure, 24 reu Lhomond, F-75231 Paris Cedex 05, France.

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