VERITAS 对未证认伽马射线源 TeV J2032+4130 的观测
高能天体物理现象
2015-06-18 v2
摘要
TeV J2032+4130 是在甚高能（VHE； GeV）波段发现的第一个未证认源，在任何其他波段均无明显的对应体。它也是首个在 VHE 伽马射线中被观测到的延展源。自其被发现以来，各波段均开展了密集的观测活动以理解该天体的本质，但收效有限。本文报告了基于 VERITAS（甚高能辐射成像望远镜阵列系统）实验 2009 年至 2012 年所采集的 48.2 小时数据对 TeV J2032+4130 的深度观测结果。该源以 8.7 个标准差（）被探测到，并表现为延展且不对称，其长轴宽度为 ，短轴宽度为 。其能谱可由微分幂律谱很好地描述，指数为 ，在 1 TeV 处的归一化常数为 。我们在多波段场景下解释了这些结果，这些场景尤其支持脉冲星风云（PWN）的解释。
引用
@article{arxiv.1401.2828,
title = {Observations of the unidentified gamma-ray source TeV J2032+4130 by VERITAS},
author = {VERITAS Collaboration and E. Aliu and T. Aune and B. Behera and M. Beilicke and W. Benbow and K. Berger and R. Bird and J. H. Buckley and V. Bugaev and J. V Cardenzana and M. Cerruti and X. Chen and L. Ciupik and M. P. Connolly and W. Cui and C. Duke and J. Dumm and M. Errando and A. Falcone and S. Federici and Q. Feng and J. P. Finley and P. Fortin and L. Fortson and A. Furniss and N. Galante and G. H. Gillanders and S. Griffin and S. T. Griffiths and J. Grube and G. Gyuk and D. Hanna and J. Holder and G. Hughes and T. B. Humensky and O. Kargaltsev and P. Kaaret and M. Kertzman and Y. Khassen and D. Kieda and H. Krawczynski and M. J. Lang and A. S Madhavan and G. Maier and P. Majumdar and A. McCann and P. Moriarty and R. Mukherjee and D. Nieto and A. O'Faolain de Bhroithe and R. A. Ong and A. N. Otte and D. Pandel and J. S. Perkins and M. Pohl and A. Popkow and H. Prokoph and J. Quinn and K. Ragan and J. Rajotte and L. C. Reyes and P. T. Reynolds and G. T. Richards and E. Roache and G. H. Sembroski and C. Skole and D. Staszak and I. Telezhinsky and M. Theiling and J. V. Tucci and J. Tyler and A. Varlotta and S. Vincent and S. P. Wakely and T. C. Weekes and A. Weinstein and R. Welsing and D. A. Williams and B. Zitzer},
journal= {arXiv preprint arXiv:1401.2828},
year = {2015}
}