利用 VERITAS 对缺失环节双星脉冲星 J1023+0038 进行的甚高能伽马射线搜寻
高能天体物理现象
2016-11-15 v1
摘要
双星毫秒射电脉冲星 PSR J1023+0038 表现出许多与伽马射线双星系统 PSR B1259--63/LS 2883 相似的特征，使其成为研究高能非热辐射的理想候选者。在 2013 年 6 月脉冲射电辐射消失后，针对该脉冲星开展了多波段观测活动，揭示了中子星周围吸积盘的出现。我们展示了 VERITAS 在这一状态改变前后进行的甚高能伽马射线观测结果。对两个数据集中稳态和脉冲辐射的搜寻均未发现高于 100 GeV 的显著伽马射线信号，并给出了稳态和脉冲伽马射线通量的上限。这些上限被用来约束 PSR J1023+0038 系统激波区域的磁场强度。假设甚高能伽马射线是通过激波区域中的逆康普顿机制产生的，我们将射电脉冲星消失前的激波磁场约束为大于约 2 G，消失后约束为大于约 10 G。
引用
@article{arxiv.1609.01692,
title = {A Search for Very High-Energy Gamma Rays from the Missing Link Binary Pulsar J1023+0038 with VERITAS},
author = {E. Aliu and S. Archambault and A. Archer and W. Benbow and R. Bird and J. Biteau and M. Buchovecky and J. H. Buckley and V. Bugaev and K. Byrum and J. V Cardenzana and M. Cerruti and X. Chen and L. Ciupik and M. P. Connolly and W. Cui and H. J. Dickinson and J. D. Eisch and A. Falcone and Q. Feng and J. P. Finley and H. Fleischhack and A. Flinders and P. Fortin and L. Fortson and A. Furniss and G. H. Gillanders and S. Griffin and J. Grube and G. Gyuk and M. Hütten and N. Håkansson and J. Holder and T. B. Humensky and C. A. Johnson and P. Kaaret and P. Kar and N. Kelley-Hoskins and M. Kertzman and D. Kieda and M. Krause and M. J. Lang and A. Loo and G. Maier and S. McArthur and A. McCann and K. Meagher and P. Moriarty and R. Mukherjee and T. Nguyen and D. Nieto and A. O'Faoláin de Bhróithe and R. A. Ong and A. N. Otte and D. Pandel and N. Park and V. Pelassa and A. Petrashyk and M. Pohl and A. Popkow and E. Pueschel and J. Quinn and K. Ragan and P. T. Reynolds and G. T. Richards and E. Roache and C. Rulten and M. Santander and G. H. Sembroski and K. Shahinyan and A. W. Smith and D. Staszak and I. Telezhinsky and J. V. Tucci and J. Tyler and A. Varlotta and S. Vincent and S. P. Wakely and O. M. Weiner and A. Weinstein and A. Wilhelm and D. A. Williams and B. Zitzer and M. Chernyakova and M. Roberts},
journal= {arXiv preprint arXiv:1609.01692},
year = {2016}
}
备注
7 pages, 3 figures, accepted for publication in ApJ