MAGIC 极大天顶角对蟹状星云高达 100 TeV 的观测
高能天体物理现象
2020-04-01 v1 天体物理仪器与方法
摘要
目的：我们旨在测量蟹状星云在约 100 TeV 能量域的伽马射线能谱分布，并检验现有轻子发射模型在这些高能下的有效性。方法：我们使用 MAGIC 望远镜系统的新型极大天顶角观测来增加 10 TeV 以上的收集面积。我们还开发了一种监测大气透射率的辅助程序，以确保累积数据的正确校准。这采用记录源位置旁边恒星场的光学图像，为透射率测量提供优于 10% 的精度。结果：我们证明 MAGIC 极大天顶角观测产生的收集面积大于一平方公里。在仅约 56 小时观测中，我们探测到蟹状星云高达 100 TeV 的伽马射线发射，从而提供了迄今成像大气切伦科夫望远镜对该源的最高能量测量。将累积和档案的 MAGIC 与 Fermi/LAT 数据与一些现有发射模型比较，我们发现它们均不能准确描述 1 GeV 到 100 TeV 的伽马射线信号。
引用
@article{arxiv.2001.09566,
title = {MAGIC very large zenith angle observations of the Crab Nebula up to 100 TeV},
author = {MAGIC Collaboration and V. A. Acciari and S. Ansoldi and L. A. Antonelli and A. Arbet Engels and D. Baack and A. Babić and B. Banerjee and U. Barres de Almeida and J. A. Barrio and J. Becerra González and W. Bednarek and L. Bellizzi and E. Bernardini and A. Berti and J. Besenrieder and W. Bhattacharyya and C. Bigongiari and A. Biland and O. Blanch and G. Bonnoli and Ž. Bošnjak and G. Busetto and R. Carosi and G. Ceribella and Y. Chai and A. Chilingaryan and S. Cikota and S. M. Colak and U. Colin and E. Colombo and J. L. Contreras and J. Cortina and S. Covino and V. D'Elia and P. Da Vela and F. Dazzi and A. De Angelis and B. De Lotto and M. Delfino and J. Delgado and D. Depaoli and F. Di Pierro and L. Di Venere and E. Do Souto Espiñeira and D. Dominis Prester and A. Donini and D. Dorner and M. Doro and D. Elsaesser and V. Fallah Ramazani and A. Fattorini and G. Ferrara and D. Fidalgo and L. Foffano and M. V. Fonseca and L. Font and C. Fruck and S. Fukami and R. J. García López and M. Garczarczyk and S. Gasparyan and M. Gaug and N. Giglietto and F. Giordano and N. Godinović and D. Green and D. Guberman and D. Hadasch and A. Hahn and J. Herrera and J. Hoang and D. Hrupec and M. Hütten and T. Inada and S. Inoue and K. Ishio and Y. Iwamura and L. Jouvin and D. Kerszberg and H. Kubo and J. Kushida and A. Lamastra and D. Lelas and F. Leone and E. Lindfors and S. Lombardi and F. Longo and M. López and R. López-Coto and A. López-Oramas and S. Loporchio and B. Machado de Oliveira Fraga and C. Maggio and P. Majumdar and M. Makariev and M. Mallamaci and G. Maneva and M. Manganaro and K. Mannheim and L. Maraschi and M. Mariotti and M. Martínez and D. Mazin and S. Mićanović and D. Miceli and M. Minev and J. M. Miranda and R. Mirzoyan and E. Molina and A. Moralejo and D. Morcuende and V. Moreno and E. Moretti and P. Munar-Adrover and V. Neustroev and C. Nigro and K. Nilsson and D. Ninci and K. Nishijima and K. Noda and L. Nogués and S. Nozaki and S. Paiano and J. Palacio and M. Palatiello and D. Paneque and R. Paoletti and J. M. Paredes and P. Peñil and M. Peresano and M. Persic and P. G. Prada Moroni and E. Prandini and I. Puljak and W. Rhode and M. Ribó and J. Rico and C. Righi and A. Rugliancich and L. Saha and N. Sahakyan and T. Saito and S. Sakurai and K. Satalecka and K. Schmidt and T. Schweizer and J. Sitarek and I. Šnidarić and D. Sobczynska and A. Somero and A. Stamerra and D. Strom and M. Strzys and Y. Suda and T. Surić and M. Takahashi and F. Tavecchio and P. Temnikov and T. Terzić and M. Teshima and N. Torres-Albà and L. Tosti and V. Vagelli and J. van Scherpenberg and G. Vanzo and M. Vazquez Acosta and C. F. Vigorito and V. Vitale and I. Vovk and M. Will and D. Zarić},
journal= {arXiv preprint arXiv:2001.09566},
year = {2020}
}
备注
10 pages, 10 figures, accepted to A&A