壳型超新星遗迹 RCW 86 的详细能谱与形态分析
高能天体物理现象
2016-01-19 v1
摘要
目标：我们旨在理解超新星遗迹 RCW~86 的形态与能谱性质，并深入探究导致其甚高能伽马射线辐射的产生机制。方法：我们分析了高能立体望远镜系统（High Energy Spectroscopic System，即 H.E.S.S.）的数据，其灵敏度相较于 RCW~86 H.E.S.S. 发现论文中给出的观测有所提升。我们研究了 0.5-1~keV X射线波段、2-5~keV X射线波段、射电与伽马射线辐射之间的形态相关性，并利用两种不同的辐射模型对谱能量分布进行了宽带建模。结果：基于我们的形态研究，我们给出了 TeV 伽马射线辐射区呈壳状的首个决定性证据。与 2-5~keV X射线数据比较揭示其与 0.4-50~TeV 伽马射线辐射相关。RCW~86 的能谱最好用带有指数截断的幂律描述，截断能量 TeV，谱指数 ~。静态轻子单区模型充分描述了 RCW~86 的实测谱能量分布，所得高于 1 GeV 的电子总动能相当于 Ia 型超新星爆发初始动能的 0.1\%。当使用强子模型时，需要 ~100G 的磁场来表征实测数据。尽管这与先前发表的估计相当，但质子的标准 E 分布谱无法描述伽马射线数据。相反，需要谱指数 ~1.7，这意味着约 erg 的能量被转移给高能质子，有效密度 cm^-3。在密度 1~cm^-3 的假设下，这约为典型 Ia 型超新星动能的 10\%。
引用
@article{arxiv.1601.04461,
title = {Detailed spectral and morphological analysis of the shell type SNR RCW 86},
author = {H. E. S. S. Collaboration and A. Abramowski and F. Aharonian and F. Ait Benkhali and A. G. Akhperjanian and E. O. Angüner and M. Backes and A. Balzer and Y. Becherini and J. Becker Tjus and D. Berge and S. Bernhard and K. Bernlöhr and E. Birsin and R. Blackwell and M. Böttcher and C. Boisson and J. Bolmont and P. Bordas and J. Bregeon and F. Brun and P. Brun and M. Bryan and T. Bulik and J. Carr and S. Casanova and N. Chakraborty and R. Chalme-Calvet and R. C. G. Chaves and A. Chen and J. Chevalier and M. Chretien and S. Colafrancesco and G. Cologna and B. Condon and J. Conrad and C. Couturier and Y. Cui and I. D. Davids and B. Degrange and C. Deil and P. deWilt and A. Djannati-Atai and W. Domainko and A. Donath and L. O'C. Drury and G. Dubus and K. Dutson and J. Dyks and M. Dyrda and T. Edwards and K. Egberts and P. Eger and J. -P. Ernenwein and P. Espigat and C. Farnier and S. Fegan and F. Feinstein and M. V. Fernandes and D. Fernandez and A. Fiasson and G. Fontaine and A. Förster and M. Füßling and S. Gabici and M. Gajdus and Y. A. Gallant and T. Garrigoux and G. Giavitto and B. Giebels and J. F. Glicenstein and D. Gottschall and A. Goyal and M. -H. Grondin and M. Grudzińska and D. Hadasch and S. Häffner and J. Hahn and J. Hawkes and G. Heinzelmann and G. Henri and G. Hermann and O. Hervet and A. Hillert and J. A. Hinton and W. Hofmann and P. Hofverberg and C. Hoischen and M. Holler and D. Horns and A. Ivascenko and A. Jacholkowska and M. Jamrozy and M. Janiak and F. Jankowsky and I. Jung-Richardt and M. A. Kastendieck and K. Katarzynski and U. Katz and D. Kerszberg and B. Khelifi and M. Kieffer and S. Klepser and D. Klochkov and W. Kluzniak and D. Kolitzus and Nu. Komin and K. Kosack and S. Krakau and F. Krayzel and P. P. Krüger and H. Laffon and G. Lamanna and J. Lau and J. Lefaucheur and V. Lefranc and A. Lemiere and M. Lemoine-Goumard and J. -P. Lenain and T. Lohse and A. Lopatin and M. Lorentz and C. -C. Lu and R. Lui and V. Marandon and A. Marcowith and C. Mariaud and R. Marx and G. Maurin and N. Maxted and M. Mayer and P. J. Meintjes and U. Menzler and M. Meyer and A. M. W. Mitchell and R. Moderski and M. Mohamed and K. Moraa and E. Moulin and T. Murach and M. de Naurois and J. Niemiec and L. Oakes and H. Odaka and S. and Öttl and S. Ohm and B. Opitz and M. Ostrowski and I. Oya and M. Panter and R. D. Parsons and M. Paz Arribas and N. W. Pekeur and G. Pelletier and P. -O. Petrucci and B. Peyaud and S. Pita and H. Poon and D. Prokhorov and H. Prokoph and G. Pühlhofer and M. Punch and A. Quirrenbach and S. Raab and I. Reichardt and A. Reimer and O. Reimer and M. Renaud and R. de los Reyes and F. Rieger and C. Romoli and S. Rosier-Lees and G. Rowell and B. Rudak and C. B. Rulten and V. Sahakian and D. Salek and D. A. Sanchez and A. Santangelo and M. Sasaki and R. Schlickeiser and F. Schüssler and A. Schulz and U. Schwanke and S. Schwemmer and A. S. Seyffert and R. Simoni and H. Sol and F. Spanier and G. Spengler and F. Spies and L. Stawarz and R. Steenkamp and C. Stegmann and F. Stinzing and K. Stycz and I. Sushch and J. -P. Tavernet and T. Tavernier and A. M. Taylor and R. Terrier and M. Tluczykont and C. Trichard and R. Tuffs and K. Valerius and J. van der Walt and C. van Eldik and B. van Soelen and G. Vasileiadis and J. Veh and C. Venter and A. Viana and P. Vincent and J. Vink and F. Voisin and H. J. Völk and T. Vuillaume and S. J. Wagner and P. Wagner and R. M. Wagner and M. Weidinger and R. White and A. Wierzcholska and P. Willmann and A. Wörnlein and D. Wouters and R. Yang and V. Zabalza and D. Zaborov and M. Zacharia and A. A. Zdziarski and A. Zech and F. Zefi and N. Zywucka},
journal= {arXiv preprint arXiv:1601.04461},
year = {2016}
}
备注
accepted for publication by A&A