## 抄録

We compute the one-point probability distribution function of small-angle cosmic microwave background temperature fluctuations due to curved cosmic (super-)strings with a simple model of string network by performing Monte Carlo simulations. Taking into account of the correlation between the curvature and the velocity of string segments, there appear non-Gaussian features, specifically non-Gaussian tails and a skewness, in the one-point pdf. The obtained sample skewness for the conventional field-theoretic cosmic strings is g_{1} -0.14, which is consistent with the result reported by Fraisse et al. We also discuss the dependence of the pdf on the intercommuting probability. We find that the standard deviation of the Gaussian part increases and non-Gaussian features are suppressed as the intercommuting probability decreases. For sufficiently small intercommuting probability, the skewness is given by (a few) × 10^{-2}.

本文言語 | English |
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論文番号 | 033 |

ジャーナル | Journal of Cosmology and Astroparticle Physics |

巻 | 2010 |

号 | 5 |

DOI | |

出版ステータス | Published - 2010 |

外部発表 | はい |

## ASJC Scopus subject areas

- 天文学と天体物理学