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Jeong, E; Smoot, G. F
Astrophysical journal/The Astrophysical journal, 05/2005, Letnik: 624, Številka: 1Journal Article
We have searched the first-year Wilkinson Microwave Anisotropy Probe (WMAP) W-band CMB anisotropy map for evidence of cosmic strings. We set a limit on the dimensionless string parameter d of d = 8pGkgb < 2.9 x 10 super(-5) for the statistical search for a significant number of strings in the map. We also set a limit using the uniform-distribution-of-strings model in the WMAP data with d = 8pGkgb < 7.3 x 10 super(-5) at the 95% confidence level (CL). The pattern search technique we developed in this paper set a limit d = 8pGkgb < 1.5 x 10 super(-5) at the 95% CL, which corresponds to a limit on the symmetry-breaking energy scale of 10 super(16) GeV/ .
