中文

利用西藏空气簇射阵列对北半球稳态 TeV $\gamma-$射线点源的最新搜寻

天体物理学 2015-05-13 v2

摘要

利用西藏 II 高密度 (HD) 阵列(1997 年 2 月至 1999 年 9 月)和西藏 -III 阵列(1999 年 11 月至 2005 年 11 月)采集的数据,我们此前针对 TeV γ\gamma-射线点源的北天巡天现已更新,统计量提高了 2.8 倍。在赤纬 (Dec) 范围从 0.00.0^{\circ}60.060.0^{\circ} 内,未识别出具有足够高显著性的新 TeV γ\gamma-射线点源,而著名的蟹状星云和 Mrk421 仍然是西藏空气簇射阵列视场内最亮的 TeV γ\gamma-射线源。基于当前可用数据并在 90% 置信水平 (C.L.) 下,重新推导了不同幂律指数假设下的通量上限,与我们之前报告的限值相比,大约提高了 1.7 倍。

关键词

引用

@article{arxiv.0804.1862,
  title  = {An Updated Search of Steady TeV $\gamma-$Ray Point Sources in Northern Hemisphere Using the Tibet Air Shower Array},
  author = {Y. Wang and X. J. Bi and S. W. Cui and L. K. Ding and Danzengluobu and X. H. Ding and C. Fan and C. F. Feng and Zhaoyang Feng and Z. Y. Feng and X. Y. Gao and Q. X. Geng and H. W. Guo and H. H. He and M. He and Haibing Hu and H. B. Hu and Q. Huang and H. Y. Jia and Labaciren and G. M. Le and A. F. Li and J. Y. Li and Y. -Q. Lou and H. Lu and S. L. Lu and X. R. Meng and J. Mu and J. R. Ren and Y. H. Tan and B. Wang and H. Wang and Y. G. Wang and H. R. Wu and L. Xue and X. C. Yang and Z. H. Ye and G. C. Yu and A. F. Yuan and H. M. Zhang and J. L. Zhang and N. J. Zhang and X. Y. Zhang and Y. Zhang and Yi Zhang and Zhaxisangzhu and X. X. Zhou and Q. Yuan},
  journal= {arXiv preprint arXiv:0804.1862},
  year   = {2015}
}

备注

This paper has been accepted by hepnp