银道面中的极端粒子加速器：HESS J1826−130
高能天体物理现象
2021-01-04 v1
摘要
未证认的甚高能（VHE；E > 0.1 TeV）γ 射线源 HESS J1826−130 由高能立体望远镜系统（HESS）在银道面中发现。对 215 小时 HESS 数据的分析揭示了来自 HESS J1826−130 的稳态 γ 射线流，其呈扩展状，半宽为 0.21° ± 0.02°_stat ± 0.05°_sys。该源能谱最好用幂律函数（谱指数 Γ = 1.78 ± 0.10_stat ± 0.20_sys，在 15.2^{+5.5}_{-3.2} TeV 处指数截断）或折断幂律（低于和高于 E_br = 11.2 ± 2.7 TeV 的能量分别有 Γ_1 = 1.96 ± 0.06_stat ± 0.20_sys、Γ_2 = 3.59 ± 0.69_stat ± 0.20_sys）拟合。来自 HESS J1826−130 的 VHE 流受到明亮邻近脉冲星风云（PWN）HESS J1825−137 扩展辐射的污染，尤其在能谱低端。与 PSR J1826−1256 相关的 HESS J1826−130 VHE 辐射轻子起源情形受到我们能谱与形态学分析的质疑。在强子框架下，考虑到 HESS J1826−130 周围致密气体区的性质，该源能谱将意味着一个能够将母粒子族加速至 ≳200 TeV 的天体物理对象。我们的结果也在多波段背景下进行讨论，兼顾邻近超新星遗迹（SNRs）、分子云以及在射电、X 射线和 TeV 能量处探测到的对应体之存在。
引用
@article{arxiv.2010.13101,
title = {An extreme particle accelerator in the Galactic plane: HESS J1826$-$130},
author = {H. E. S. S. Collaboration and H. Abdalla and R. Adam and F. Aharonian and F. Ait Benkhali and E. O. Angüner and C. Arcaro and C. Armand and T. Armstrong and H. Ashkar and M. Backes and V. Baghmanyan and V. Barbosa Martins and A. Barnacka and M. Barnard and Y. Becherini and D. Berge and K. Bernlöhr and B. Bi and M. Böttcher and C. Boisson and J. Bolmont and M. de Bony de Lavergne and P. Bordas and M. Breuhaus and F. Brun and P. Brun and M. Bryan and M. Büchele and T. Bulik and T. Bylund and S. Caroff and A. Carosi and S. Casanova and T. Chand and S. Chandra and A. Chen and G. Cotter and M. Curyło and J. Damascene Mbarubucyeye and I. D. Davids and J. Davies and C. Deil and J. Devin and P. deWilt and L. Dirson and A. Djannati-Ataï and A. Dmytriiev and A. Donath and V. Doroshenko and C. Duffy and J. Dyks and K. Egberts and F. Eichhorn and S. Einecke and G. Emery and J. -P. Ernenwein and K. Feijen and S. Fegan and A. Fiasson and G. Fichet de Clairfontaine and G. Fontaine and S. Funk and M. Füßling and S. Gabici and Y. A. Gallant and G. Giavitto and L. Giunti and D. Glawion and J. F. Glicenstein and D. Gottschall and M. -H. Grondin and J. Hahn and M. Haupt and G. Hermann and J. A. Hinton and W. Hofmann and C. Hoischen and T. L. Holch and M. Holler and M. Hörbe and D. Horns and D. Huber and M. Jamrozy and D. Jankowsky and F. Jankowsky and A. Jardin-Blicq and V. Joshi and I. Jung-Richardt and E. Kasai and M. A. Kastendieck and K. Katarzyński and U. Katz and D. Khangulyan and B. Khélifi and S. Klepser and W. Kluźniak and Nu. Komin and R. Konno and K. Kosack and D. Kostunin and M. Kreter and G. Lamanna and A. Lemière and M. Lemoine-Goumard and J. -P. Lenain and C. Levy and T. Lohse and I. Lypova and J. Mackey and J. Majumdar and D. Malyshev and D. Malyshev and V. Marandon and P. Marchegiani and A. Marcowith and A. Mares and G. Martí-Devesa and R. Marx and G. Maurin and P. J. Meintjes and M. Meyer and A. Mitchell and R. Moderski and M. Mohamed and L. Mohrmann and A. Montanari and C. Moore and P. Morris and E. Moulin and J. Muller and T. Murach and K. Nakashima and A. Nayerhoda and M. de Naurois and H. Ndiyavala and F. Niederwanger and J. Niemiec and L. Oakes and P. O'Brien and H. Odaka and S. Ohm and L. Olivera-Nieto and E. de Ona Wilhelmi and M. Ostrowski and I. Oya and M. Panter and S. Panny and R. D. Parsons and G. Peron and B. Peyaud and Q. Piel and S. Pita and V. Poireau and A. Priyana Noel and D. A. Prokhorov and H. Prokoph and G. Pühlhofer and M. Punch and A. Quirrenbach and S. Raab and R. Rauth and P. Reichherzer and A. Reimer and O. Reimer and Q. Remy and M. Renaud and F. Rieger and L. Rinchiuso and C. Romoli and G. Rowell and B. Rudak and E. Ruiz-Velasco and V. Sahakian and S. Sailer and D. A. Sanchez and A. Santangelo and M. Sasaki and M. Scalici and F. Schüssler and H. M. Schutte and U. Schwanke and S. Schwemmer and M. Seglar-Arroyo and M. Senniappan and A. S. Seyffert and N. Shafi and K. Shiningayamwe and R. Simoni and A. Sinha and H. Sol and A. Specovius and S. Spencer and M. Spir-Jacob and Ł. Stawarz and L. Sun and R. Steenkamp and C. Stegmann and S. Steinmassl and C. Steppa and T. Takahashi and T. Tavernier and A. M. Taylor and R. Terrier and D. Tiziani and M. Tluczykont and L. Tomankova and C. Trichard and M. Tsirou and R. Tuffs and Y. Uchiyama and D. J. van der Walt and C. van Eldik and C. van Rensburg and B. van Soelen and G. Vasileiadis and J. Veh and C. Venter and P. Vincent and J. Vink and H. J. Völk and T. Vuillaume and Z. Wadiasingh and S. J. Wagner and J. Watson and F. Werner and R. White and A. Wierzcholska and Yu Wun Wong and A. Yusafzai and M. Zacharias and R. Zanin and D. Zargaryan and A. A. Zdziarski and A. Zech and S. J. Zhu and A. Ziegler and J. Zorn and S. Zouari and N. Żywucka},
journal= {arXiv preprint arXiv:2010.13101},
year = {2021}
}
备注
9 Pages, 5 Figures