利用 MAGIC 望远镜对黑寡妇 B1957+20 毫秒脉冲星双星系统的观测
高能天体物理现象
2019-12-02 v1
摘要
B1957+20 是一颗位于黑寡妇型致密双星系统中的毫秒脉冲星，其伴星为一颗低质量恒星。脉冲星风与伴星风和/或星际等离子体的相互作用，预计将为电子加速至 TeV 能量以及随后在逆 Compton 过程中产生甚高能 射线创造合理条件。我们利用 MAGIC 望远镜对 B1957+20 进行了广泛观测。我们在几个不同模型的框架内解释了结果，即来自毫秒脉冲星附近的辐射、脉冲星与恒星伴星风相互作用区或弓激波星云的辐射。未发现显著的甚高能 射线稳定辐射。我们推导出该双星系统在 200 GeV 以上的平均 射线辐射的 95% 置信水平上限为 。用 MAGIC 获得的上限首次限制了 B1957+20 高能辐射的不同模型。特别是，在具有单能电子注入的内混合风星云模型中，电子的加速效率被限制在低于脉冲星自转能损功率的约 (2-10)%。对于脉冲星辐射，每个辐射峰获得的观测上限远高于外推至 50 GeV 以上能量的 Fermi-LAT 数据的指数截断拟合。MAGIC 上限可以排除在射电频率处观测到的主峰通过亚 TeV 能量范围的简单幂律尾部延伸。
引用
@article{arxiv.1706.01378,
title = {Observation of the Black Widow B1957+20 millisecond pulsar binary system with the MAGIC telescopes},
author = {MAGIC Collaboration and M. L. Ahnen and S. Ansoldi and L. A. Antonelli and C. Arcaro 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 B. Biasuzzi and A. Biland and O. Blanch and S. Bonnefoy and G. Bonnoli and F. Borracci and T. Bretz and R. Carosi and A. Carosi and A. Chatterjee and P. Colin and E. Colombo and J. L. Contreras and J. Cortina and S. Covino and P. Cumani and P. Da Vela and F. Dazzi and A. De Angelis and B. De Lotto and E. de Oña Wilhelmi and F. Di Pierro and M. Doert and A. Domínguez and D. Dominis Prester and D. Dorner and M. Doro and S. Einecke and D. Eisenacher Glawion and D. Elsaesser and M. Engelkemeier and V. Fallah Ramazani and A. Fernández-Barral and D. Fidalgo and M. V. Fonseca and L. Font and C. Fruck and D. Galindo and R. J. García López and M. Garczarczyk and M. Gaug and P. Giammaria and N. Godinović and D. Gora and S. R. Gozzini and S. Griffiths and D. Guberman and D. Hadasch and A. Hahn and T. Hassan and M. Hayashida and J. Herrera and J. Hose and D. Hrupec and G. Hughes and K. Ishio and Y. Konno and H. Kubo and J. Kushida and D. Kuveždić and D. Lelas and E. Lindfors and S. Lombardi and F. Longo and M. López 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 D. Mazin and U. Menzel and R. Mirzoyan and A. Moralejo and V. Moreno and E. Moretti and V. Neustroev and A. Niedzwiecki and M. Nievas Rosillo and K. Nilsson 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 X. Paredes-Fortuny and G. Pedaletti and M. Peresano and L. Perri and M. Persic and J. Poutanen and P. G. Prada Moroni and E. Prandini and I. Puljak and J. R. Garcia and I. Reichardt and W. Rhode and M. Ribó and J. Rico and T. Saito and K. Satalecka and S. Schroeder and T. Schweizer and A. Sillanpää and J. Sitarek and I. Šnidarić and D. Sobczynska and A. Stamerra and M. Strzys and T. Surić and L. Takalo and F. Tavecchio and P. Temnikov and T. Terzić and D. Tescaro and M. Teshima and D. F. Torres and N. Torres-Albà and A. Treves and G. Vanzo and M. Vazquez Acosta and I. Vovk and J. E. Ward and M. Will and M. H. Wu and D. Zarić and I. Cognard and L. Guillemot},
journal= {arXiv preprint arXiv:1706.01378},
year = {2019}
}
备注
12 pages, 10 figures, accepted for publication in MNRAS