MAGIC望远镜对GRB080430余辉的观测
高能天体物理现象
2019-08-15 v2
摘要
背景：伽马射线暴是发射从伽马射线到射电波段辐射的宇宙学源。在瞬时阶段（即高能辐射的初始爆发）和长持续时间余辉期间，人们已投入大量观测精力研究伽马射线暴。尽管在解释这些现象方面取得了许多成功，但关于其基本辐射过程、能量学和环境，仍存在几个关键的开放性问题。目的：独立于特定的伽马射线暴理论模型，GeV/TeV能段的谱被预测为极其简单，可以令人满意地用幂律建模，因此为探测河外背景光分布提供了非常有价值的工具。此外，在甚高能（即 \,GeV）处简单探测到某一成分，将解决关于各种可能辐射过程重要性的歧义，这些过程在较低能量下提供的场景几乎无法区分。方法：我们利用MAGIC望远镜在约80\,GeV以上能量对中等红移（）的 \object{GRB\,080430} 的观测结果，评估了地基GeV/TeV望远镜进行晚余辉观测的前景。结果：我们获得了 \object{GRB\,080430} 甚高能辐射的上限为 F_{\rm 95%\,CL} = 5.5 \times 10^{-11}\,erg\,cm\,s，由于对低能余辉建模存在困难，该结果无法对该天体提出的理论场景给出进一步约束。尽管如此，我们的观测表明，只要在早期（即接近其余辉阶段开始时）进行观测，切伦科夫望远镜已经具备了探测中等红移（）伽马射线暴GeV/TeV辐射所需的灵敏度。
引用
@article{arxiv.1004.3665,
title = {MAGIC observation of the GRB080430 afterglow},
author = {MAGIC Collaboration and J. Aleksić and H. Anderhub and L. A. Antonelli and P. Antoranz and M. Backes and C. Baixeras and S. Balestra and J. A. Barrio and D. Bastieri and J. Becerra González and J. K. Becker and W. Bednarek and A. Berdyugin and K. Berger and E. Bernardini and A. Biland and R. K. Bock and G. Bonnoli and P. Bordas and D. Borla Tridon and V. Bosch-Ramon and D. Bose and I. Braun and T. Bretz and D. Britzger and M. Camara and E. Carmona and A. Carosi and P. Colin and S. Commichau and J. L. Contreras and J. Cortina and M. T. Costado and S. Covino and F. Dazzi and A. De Angelis and E. de Cea del Pozo and R. De los Reyes and B. De Lotto and M. De Maria and F. De Sabata and C. Delgado Mendez and M. Doert and A. Domínguez and D. Dominis Prester and D. Dorner and M. Doro and D. Elsaesser and M. Errando and D. Ferenc and E. Fernández and R. Firpo and M. V. Fonseca and L. Font and N. Galante and R. J. García López and M. Garczarczyk and M. Gaug and N. Godinovic and F. Goebel and D. Hadasch and A. Herrero and D. Hildebrand and D. Höhne-Mönch and J. Hose and D. Hrupec and C. C. Hsu and T. Jogler and S. Klepser and T. Krähenbühl and D. Kranich and A. La Barbera and A. Laille and E. Leonardo and E. Lindfors and S. Lombardi and F. Longo and M. López and E. Lorenz and P. Majumdar and G. Maneva and N. Mankuzhiyil and K. Mannheim and L. Maraschi and M. Mariotti and M. Martínez and D. Mazin and M. Meucci and J. M. Miranda and R. Mirzoyan and H. Miyamoto and J. Moldón and M. Moles and A. Moralejo and D. Nieto and K. Nilsson and J. Ninkovic and R. Orito and I. Oya and R. Paoletti and J. M. Paredes and M. Pasanen and D. Pascoli and F. Pauss and R. G. Pegna and M. A. Perez-Torres and M. Persic and L. Peruzzo and F. Prada and E. Prandini and N. Puchades and I. Puljak and I. Reichardt and W. Rhode and M. Ribó and J. Rico and M. Rissi and S. Rügamer and A. Saggion and T. Y. Saito and M. Salvati and M. Sánchez-Conde and K. Satalecka and V. Scalzotto and V. Scapin and T. Schweizer and M. Shayduk and S. N. Shore and A. Sierpowska-Bartosik and A. Sillanpää and J. Sitarek and D. Sobczynska and F. Spanier and S. Spiro and A. Stamerra and B. Steinke and N. Strah and J. C. Struebig and T. Suric and L. Takalo and F. Tavecchio and P. Temnikov and D. Tescaro and M. Teshima and D. F. Torres and N. Turini and H. Vankov and R. M. Wagner and V. Zabalza and F. Zandanel and R. Zanin and J. Zapatero and A. de Ugarte-Postigo},
journal= {arXiv preprint arXiv:1004.3665},
year = {2019}
}
备注
6 pages, 1 figure. Astronomy & Astrophysics, in press. Revision affects only the author list.