利用 MAGIC 望远镜约束 FRB 121102 的甚高能与光学辐射
高能天体物理现象
2020-01-29 v1
摘要
快速射电暴（FRBs）是在约 GHz 频段观测到的毫秒级明亮闪现，其起源很可能位于河外星系。它们的本质仍属未知，这推动了在其他波长上寻找对应体的工作。FRB 121102 迄今是唯一已知重复爆发 FRB 的源，并与红移 处的宿主星系相关联。我们在 2016–2017 年多个时期利用 Arecibo 与 MAGIC 望远镜对 FRB 121102 进行了同步观测。这使得我们能够在甚高能（VHE）伽马射线以及光学波段搜寻毫秒时间尺度的暴发射电。虽然在观测期间共探测到五次 FRB，但未探测到任何 VHE 辐射，既无持续性质也无与 FRB 相关的暴发性辐射。在 95% 置信度下，整个观测期间高于 100 GeV 的平均积分通量上限为 （对应光度 ），五次 FRB 总持续时间内为 （）。我们将 FRB 到达时刻附近 1 ms 区间内的光学 U 波段通量约束在 5- 水平低于 8.6 mJy。在一次 FRB 到达前 4.3 s 探测到一次 U 波段通量 、持续时间约 12 ms 的明亮爆发。然而，在采样时间空间内虚假探测到此类信号的概率为 1.5%（事后检验 2.2 ），即与预期背景一致。我们讨论了所得上限对约束 FRB 模型的意义。
引用
@article{arxiv.1809.00663,
title = {Constraining very-high-energy and optical emission from FRB 121102 with the MAGIC telescopes},
author = {MAGIC Collaboration and V. A. Acciari and S. Ansoldi and L. A. Antonelli and A. Arbet Engels and C. Arcaro and D. Baack and A. Babić and B. Banerjee and P. Bangale and U. Barres de Almeida and J. A. Barrio and J. Becerra González and W. Bednarek 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 R. Carosi and G. Ceribella and A. Chatterjee and S. M. Colak and P. Colin and E. Colombo and J. L. Contreras and J. Cortina and S. Covino and P. Cumani 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 F. Di Pierro and A. Domínguez and D. Dominis Prester and D. Dorner and M. Doro and S. Einecke and D. Elsaesser and V. Fallah Ramazani and A. Fattorini and A. Fernández-Barral and G. Ferrara and D. Fidalgo and L. Foffano and M. V. Fonseca and L. Font and C. Fruck and S. Gallozzi and R. J. García ópez and M. Garczarczyk and M. Gaug and P. Giammaria and N. Godinović and D. Guberman and D. Hadasch and A. Hahn and T. Hassan and J. Herrera and J. Hoang and D. Hrupec and S. Inoue and K. Ishio and Y. Iwamura and H. Kubo and J. Kushida and D. Kuveždić and A. Lamastra and D. Lelas and F. Leone and E. Lindfors and S. Lombardi and F. Longo and M. López and A. López-Oramas and C. Maggio and P. Majumdar and M. Makariev and G. Maneva and M. Manganaro and K. Mannheim and L. Maraschi and M. Mariotti and M. Martínez and S. Masuda and D. Mazin and M. Minev and J. M. Miranda and R. Mirzoyan and E. Molina and A. Moralejo and V. Moreno and E. Moretti and V. Neustroev and A. Niedzwiecki and M. Nievas Rosillo and C. Nigro and K. Nilsson and D. Ninci and K. Nishijima and K. Noda and L. Nogués and S. Paiano and J. Palacio and D. Paneque and R. Paoletti and J. M. Paredes and G. Pedaletti and P. Peñil and M. Peresano and M. Persic and P. G. Prada Moroni and E. Prandini and I. Puljak and J. R. Garcia and W. Rhode and M. Ribó and J. Rico and C. Righi and A. Rugliancich and L. Saha and T. Saito and K. Satalecka and T. Schweizer and J. Sitarek and I. Šnidarić and D. Sobczynska and A. Somero and A. Stamerra and M. Strzys and T. Surić and F. Tavecchio and P. Temnikov and T. Terzić and M. Teshima and N. Torres-Albà and S. Tsujimoto and G. Vanzo and M. Vazquez Acosta and I. Vovk and J. E. Ward and M. Will and D. Zarić and B. Marcote and L. G. Spitler and J. W. T. Hessels and K. Kashiyama and K. Murase and V. Bosch-Ramon and D. Michilli and A. Seymour},
journal= {arXiv preprint arXiv:1809.00663},
year = {2020}
}
备注
9 pages, 3 figures. Accepted for publication in MNRAS the 2nd September 2018