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Abstract: We showed that the part of strings could be detected by optical method isonly 20% from the total available amount of such objects, therefore thegravitational lensing method has to be -completed- by CMB one. We found thegeneral structure of the CMB anisotropy generated by a cosmic string for simplemodel of straight string moving with constant velocity. For strings withdeficit angle 1-2 arcsec the amplitude of generated anisotropy has to be 15-30muK the corresponding string linear density is G mu ~ 10^{-7} and energy isGUT one, 10^{15} GeV. To use both radio and optical methods the deficit anglehas to be from 0.1 arcsec to 5-6 arcsec. If cosmic string can be detected byoptical method, the length of corresponding brightness spot of anisotropy hasto be no less than 100 degrees.

Autor: O.S. Sazhina 1, M.V. Sazhin 1, V.N. Sementsov 1, M. Capaccioli 2 and 3, G. Longo 2, G. Riccio 2, G. D'Angelo 2 1 Sternberg A


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