A Multiscale pipeline for the search of string-induced CMB anisotropies

  title={A Multiscale pipeline for the search of string-induced CMB anisotropies},
  author={A. V. Sadr and S. M. M. Movahed and M. Farhang and C. Ringeval and F. Bouchet},
  journal={Monthly Notices of the Royal Astronomical Society},
  • A. V. Sadr, S. M. M. Movahed, +2 authors F. Bouchet
  • Published 2018
  • Physics, Mathematics
  • Monthly Notices of the Royal Astronomical Society
  • We propose a multi-scale edge-detection algorithm to search for the Gott-Kaiser-Stebbins imprints of a cosmic string (CS) network on the Cosmic Microwave Background (CMB) anisotropies. Curvelet decomposition and extended Canny algorithm are used to enhance the string detectability. Various statistical tools are then applied to quantify the deviation of CMB maps having a cosmic string contribution with respect to pure Gaussian anisotropies of inflationary origin. These statistical measures… CONTINUE READING
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