探测到来自蟹状星云脉冲星能量高于100 GeV的脉冲伽马射线
高能天体物理现象
2011-10-24 v1
摘要
我们报告了利用VERITAS大气切伦科夫望远镜阵列探测到来自蟹状星云脉冲星能量高于100吉电子伏特(GeV)的脉冲伽马射线。这一探测结果无法基于现有的脉冲星模型加以解释。脉冲辐射在100兆电子伏特(MeV)至400 GeV之间的光子谱可用一个折线幂律谱描述，该谱在统计上优于带指数截断的幂律谱。用曲率辐射作为所观测到的100 GeV以上伽马射线的起源来解释该观测结果的可能性不大。我们的发现要求这些伽马射线产生于距离中子星10个恒星半径以上的区域。
引用
@article{arxiv.1108.3797,
title = {Detection of Pulsed Gamma Rays Above 100 GeV from the Crab Pulsar},
author = {VERITAS Collaboration and E. Aliu and T. Arlen and T. Aune and M. Beilicke and W. Benbow and A. Bouvier and S. M. Bradbury and J. H. Buckley and V. Bugaev and K. Byrum and A. Cannon and A. Cesarini and J. L. Christiansen and L. Ciupik and E. Collins-Hughes and M. P. Connolly and W. Cui and R. Dickherber and C. Duke and M. Errando and A. Falcone and J. P. Finley and G. Finnegan and L. Fortson and A. Furniss and N. Galante and D. Gall and K. Gibbs and G. H. Gillanders and S. Godambe and S. Griffin and J. Grube and R. Guenette and G. Gyuk and D. Hanna and J. Holder and H. Huan and G. Hughes and C. M. Hui and T. B. Humensky and A. Imran and P. Kaaret and N. Karlsson and M. Kertzman and D. Kieda and H. Krawczynski and F. Krennrich and M. J. Lang and M. Lyutikov and A. S Madhavan and G. Maier and P. Majumdar and S. McArthur and A. McCann and M. McCutcheon and P. Moriarty and R. Mukherjee and P. Nuñez and R. A. Ong and M. Orr and A. N. Otte and N. Park and J. S. Perkins and F. Pizlo and M. Pohl and H. Prokoph and J. Quinn and K. Ragan and L. C. Reyes and P. T. Reynolds and E. Roache and J. Rose and J. Ruppel and D. B. Saxon and M. Schroedter and G. H. Sembroski and G. D. Şentürk and A. W. Smith and D. Staszak and G. Tešić and M. Theiling and S. Thibadeau and K. Tsurusaki and J. Tyler and A. Varlotta and V. V. Vassiliev and S. Vincent and M. Vivier and S. P. Wakely and J. E. Ward and T. C. Weekes and A. Weinstein and T. Weisgarber and D. A. Williams and B. Zitzer},
journal= {arXiv preprint arXiv:1108.3797},
year = {2011}
}
备注
17 pages, corresponding authors: Nepomuk Otte [email protected]; Andrew McCann [email protected]; Martin Schroedter [email protected]