利用望远镜阵列数据检验超高能宇宙线到达方向与邻近星暴星系流量图之间报道的相关性
高能天体物理现象
2018-11-09 v2
摘要
皮埃尔·奥格合作组（Auger）最近报道了能量高于39 EeV的宇宙线到达方向与23个邻近星暴星系（SBGs）流量图之间的相关性。在本快报中，我们使用望远镜阵列实验（TA）在2008年5月至2017年5月9年期间内探测到的宇宙线检验了同一假设。与Auger分析不同，我们未对参数值进行优化，而是将其固定为Auger找到的最佳拟合值，即假设源自列表中SBGs的宇宙线各向异性比例为9.7%，相关角尺度为12.9{\deg}。我们采用的能量阈值为43 EeV，在考虑两个实验间能量标度差异后对应于Auger的39 EeV。我们发现TA数据与各向同性在1.1{\sigma}内相容，与Auger结果在1.4{\sigma}内相容，这意味着它无法区分这两种假设。
引用
@article{arxiv.1809.01573,
title = {Testing a reported correlation between arrival directions of ultrahigh-energy cosmic rays and a flux pattern from nearby starburst galaxies using Telescope Array data},
author = {Telescope Array Collaboration and R. U. Abbasi and M. Abe and T. Abu-Zayyad and M. Allen and R. Azuma and E. Barcikowski and J. W. Belz and D. R. Bergman and S. A. Blake and R. Cady and B. G. Cheon and J. Chiba and M. Chikawa and A. di Matteo and T. Fujii and K. Fujita and M. Fukushima and G. Furlich and T. Goto and W. Hanlon and M. Hayashi and Y. Hayashi and N. Hayashida and K. Hibino and K. Honda and D. Ikeda and N. Inoue and T. Ishii and R. Ishimori and H. Ito and D. Ivanov and H. M. Jeong and S. Jeong and C. C. H. Jui and K. Kadota and F. Kakimoto and O. Kalashev and K. Kasahara and H. Kawai and S. Kawakami and S. Kawana and K. Kawata and E. Kido and H. B. Kim and J. H. Kim and J. H. Kim and S. Kishigami and S. Kitamura and Y. Kitamura and V. Kuzmin and M. Kuznetsov and Y. J. Kwon and K. H. Lee and B. Lubsandorzhiev and J. P. Lundquist and K. Machida and K. Martens and T. Matsuyama and J. N. Matthews and R. Mayta and M. Minamino and K. Mukai and I. Myers and K. Nagasawa and S. Nagataki and R. Nakamura and T. Nakamura and T. Nonaka and H. Oda and S. Ogio and J. Ogura and M. Ohnishi and H. Ohoka and T. Okuda and Y. Omura and M. Ono and R. Onogi and A. Oshima and S. Ozawa and I. H. Park and M. S. Pshirkov and J. Remington and D. C. Rodriguez and G. Rubtsov and D. Ryu and H. Sagawa and R. Sahara and K. Saito and Y. Saito and N. Sakaki and N. Sakurai and L. M. Scott and T. Seki and K. Sekino and P. D. Shah and F. Shibata and T. Shibata and H. Shimodaira and B. K. Shin and H. S. Shin and J. D. Smith and P. Sokolsky and B. T. Stokes and S. R. Stratton and T. A. Stroman and T. Suzawa and Y. Takagi and Y. Takahashi and M. Takamura and M. Takeda and R. Takeishi and A. Taketa and M. Takita and Y. Tameda and H. Tanaka and K. Tanaka and M. Tanaka and S. B. Thomas and G. B. Thomson and P. Tinyakov and I. Tkachev and H. Tokuno and T. Tomida and S. Troitsky and Y. Tsunesada and K. Tsutsumi and Y. Uchihori and S. Udo and F. Urban and T. Wong and M. Yamamoto and R. Yamane and H. Yamaoka and K. Yamazaki and J. Yang and K. Yashiro and Y. Yoneda and S. Yoshida and H. Yoshii and Y. Zhezher and Z. Zundel},
journal= {arXiv preprint arXiv:1809.01573},
year = {2018}
}
备注
More accurate title, fixed an inconsistency in the declination range used, with a few figures slightly changing as a result, other minor revisions