H.E.S.S. 对 SN 1006 的甚高能伽马射线首次探测
高能天体物理现象
2010-10-12 v1 星系天体物理
摘要
最近对 SN 1006 最低甚高能 (VHE) 光度的理论预测仅比先前发表的 H.E.S.S. 上限低 5 倍，因此促使对该源进行更深入的观测。从 2003 年到 2008 年，利用 H.E.S.S. 切伦科夫望远镜阵列在 VHE 能段（100 GeV 以上）进行了深度观测。已收集了超过 100 小时的数据，并采用了改进的分析程序进行处理。观测结果探测到了来自 SN 1006 的 VHE 伽马射线。测得的伽马射线谱与幂律谱相符，其通量约为蟹状星云探测通量的 1%，因此与先前确立的 H.E.S.S. 上限一致。该源呈现双极形态，与非热 X 射线强烈相关。由于 VHE 壳层的厚度与薄边缘的发射相符，激波中的粒子加速很可能是伽马射线信号的起源。测得的通量水平可以由逆康普顿发射解释，但包含轻子和强子成分并考虑从观测推断的环境物质密度的混合场景，同样能对多波段光谱给出令人满意的描述。
引用
@article{arxiv.1004.2124,
title = {First detection of VHE gamma-rays from SN 1006 by H.E.S.S},
author = {HESS Collaboration and F. Acero and F. Aharonian and A. G. Akhperjanian and G. Anton and U. Barres de Almeida and A. R. Bazer-Bachi and Y. Becherini and B. Behera and M. Beilicke and K. Bernlöhr and A. Bochow and C. Boisson and J. Bolmont and V. Borrel and J. Brucker and F. Brun and P. Brun and R. Bühler and T. Bulik and I. Büsching and T. Boutelier and P. M. Chadwick and A. Charbonnier and R. C. G. Chaves and A. Cheesebrough and J. Conrad and L. -M. Chounet and A. C. Clapson and G. Coignet and M. Dalton and M. K. Daniel and I. D. Davids and B. Degrange and C. Deil and H. J. Dickinson and A. Djannati-Ataï and W. Domainko and L. O'C. Drury and F. Dubois and G. Dubus and J. Dyks and M. Dyrda and K. Egberts and P. Eger and P. Espigat and L. Fallon and C. Farnier and S. Fegan and F. Feinstein and A. Fiasson and A. Förster and G. Fontaine and M. Füßling and S. Gabici and Y. A. Gallant and L. Gérard and D. Gerbig and B. Giebels and J. F. Glicenstein and B. Glück and P. Goret and D. Göring and D. Hauser and M. Hauser and S. Heinz and G. Heinzelmann and G. Henri and G. Hermann and J. A. Hinton and A. Hoffmann and W. Hofmann and P. Hofverberg and M. Holleran and S. Hoppe and D. Horns and A. Jacholkowska and O. C. de Jager and C. Jahn and I. Jung and K. Katarzy'nski and U. Katz and S. Kaufmann and M. Kerschhaggl and D. Khangulyan and B. Khélifi and D. Keogh and D. Klochkov and W. Klu'zniak and T. Kneiske and Nu. Komin and K. Kosack and R. Kossakowski and G. Lamanna and M. Lemoine-Goumard and J. -P. Lenain and T. Lohse and V. Marandon and A. Marcowith and J. Masbou and D. Maurin and T. J. L. McComb and M. C. Medina and J. Méhault and E. Moulin and M. Naumann-Godo and M. de Naurois and D. Nedbal and D. Nekrassov and B. Nicholas and J. Niemiec and S. J. Nolan and S. Ohm and J-F. Olive and E. de Ona Wilhelmi K. J. Orford and M. Ostrowski and M. Panter and M. Paz Arribas G. Pedaletti and G. Pelletier and P. -O. Petrucci and S. Pita and 12 G. Pühlhofer and M. Punch and A. Quirrenbach and B. C. Raubenheimer and M. Raue and S. M. Rayner and O. Reimer and M. Renaud and R. de los Reyes and F. Rieger and J. Ripken and L. Rob and S. Rosier-Lees and G. Rowell and B. Rudak and C. B. Rulten and J. Ruppel and F. Ryde and V. Sahakian and A. Santangelo and R. Schlickeiser and F. M. Schöck and A. Schönwald and U. Schwanke and S. Schwarzburg and S. Schwemmer and A. Shalchi and I. Sushch and M. Sikora and J. L. Skilton and H. Sol and Ł. Stawarz and R. Steenkamp and C. Stegmann and F. Stinzing and G. Superina and A. Szostek and P. H. Tam and J. -P. Tavernet and R. Terrier and O. Tibolla and M. Tluczykont and C. van Eldik and G. Vasileiadis and C. Venter and L. Venter and J. P. Vialle and P. Vincent and J. Vink and M. Vivier and H. J. Völk and F. Volpe and S. Vorobiov and S. J. Wagner and M. Ward and A. A. Zdziarski and A. Zech},
journal= {arXiv preprint arXiv:1004.2124},
year = {2010}
}
备注
7 pages, 8 figures, accepted for publication in A&A