## Abstract

We compute analytically the small-scale temperature fluctuations of cosmic microwave background from cosmic (super-)strings and study the dependence on the string intercommuting probability P. We develop an analytical model which describes the evolution of a string network and calculate the numbers of string segments and kinks in a horizon volume. Then we derive the probability distribution function (pdf). The resultant pdf consists of a Gaussian part due to frequent scattering by long string segments and a non-Gaussian tail due to close encounters with kinks. It contains two phenomenological parameters which are determined by comparison with the result of numerical simulations for P = 1 by Fraisse et al.. We predict that the non-Gaussian feature is suppressed for small P.

Original language | English |
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Pages | 259-262 |

Number of pages | 4 |

Publication status | Published - 2009 Dec 1 |

Event | 19th Workshop on General Relativity and Gravitation in Japan, JGRG 2009 - Tokyo, Japan Duration: 2009 Nov 30 → 2009 Dec 4 |

### Other

Other | 19th Workshop on General Relativity and Gravitation in Japan, JGRG 2009 |
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Country | Japan |

City | Tokyo |

Period | 09/11/30 → 09/12/4 |

## ASJC Scopus subject areas

- Atomic and Molecular Physics, and Optics