再发新星 RS Ophiuchi 中的时间分辨强子粒子加速
高能天体物理现象
2022-03-29 v2
摘要
再发新星是白矮星外层重复的核热爆炸，由来自双星伴星的新鲜物质吸积引起。抛射物质撞击伴星风所产生的激波将粒子加速至甚高能。我们利用高能立体系统 (High Energy Stereoscopic System) 报道了再发新星 RS Ophiuchi 在 2021 年爆发后经长达一个月的甚高能（VHE, ≳100 GeV）伽马射线。VHE 发射与较低能 GeV 发射具有相似的时间轮廓，表明共同起源，且峰值通量有两天延迟。这些观测约束了时间依赖粒子能量化的模型，支持强子发射情景而非轻子替代方案。这证实了致密风中的激波为高效的甚高能宇宙线加速提供了有利环境。
引用
@article{arxiv.2202.08201,
title = {Time-resolved hadronic particle acceleration in the recurrent Nova RS Ophiuchi},
author = {H. E. S. S. Collaboration and F. Aharonian and F. Ait Benkhali and E. O. Angüner and H. Ashkar and M. Backes and V. Baghmanyan and V. Barbosa Martins and R. Batzofin 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 M. Breuhaus and R. Brose and F. Brun and S. Caroff and S. Casanova and M. Cerruti and T. Chand and A. Chen and G. Cotter and J. Damascene Mbarubucyeye and A. Djannati-Ataï and A. Dmytriiev and V. Doroshenko and C. Duffy and K. Egberts and J. -P. Ernenwein and S. Fegan and K. Feijen and A. Fiasson and G. Fichet de Clairfontaine and G. Fontaine and M. Füßling and S. Funk and S. Gabici and Y. A. Gallant and S. Ghafourizadeh and G. Giavitto and L. Giunti and D. Glawion and J. F. Glicenstein and M. -H. Grondin and G. Hermann and J. A. Hinton and M. Hörbe and W. Hofmann and C. Hoischen and T. L. Holch and M. Holler and D. Horns and Zhiqiu Huang and M. Jamrozy and F. Jankowsky and I. Jung-Richardt and E. Kasai 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 S. Le Stum and A. Lemière and M. Lemoine-Goumard and J. -P. Lenain and F. Leuschner and T. Lohse and A. Luashvili and I. Lypova and J. Mackey and D. Malyshev and D. Malyshev and V. Marandon and P. Marchegiani and A. Marcowith and G. Martí-Devesa and R. Marx and G. Maurin and M. Meyer and A. Mitchell and R. Moderski and L. Mohrmann and A. Montanari and E. Moulin and J. Muller and T. Murach and K. Nakashima and M. de Naurois and A. Nayerhoda and J. Niemiec and A. Priyana Noel and P. O'Brien and S. Ohm and L. Olivera-Nieto and E. de Ona Wilhelmi and M. Ostrowski and S. Panny and M. Panter and R. D. Parsons and G. Peron and S. Pita and V. Poireau and D. A. Prokhorov and H. Prokoph and G. Pühlhofer and M. Punch and A. Quirrenbach and P. Reichherzer and A. Reimer and O. Reimer and M. Renaud and B. Reville and F. Rieger and G. Rowell and B. Rudak and H. Rueda Ricarte and E. Ruiz-Velasco and V. Sahakian and S. Sailer and H. Salzmann and D. A. Sanchez and A. Santangelo and M. Sasaki and J. Schäfer and F. Schüssler and H. M. Schutte and U. Schwanke and M. Senniappan and J. N. S. Shapopi and R. Simoni and A. Sinha and H. Sol and A. Specovius and S. Spencer and Ł. Stawarz and S. Steinmassl and C. Steppa and T. Takahashi and T. Tanaka and A. M. Taylor and R. Terrier and C. Thorpe-Morgan and M. Tsirou and N. Tsuji and R. Tuffs and Y. Uchiyama and T. Unbehaun and C. van Eldik and B. van Soelen and J. Veh and C. Venter and J. Vink and S. J. Wagner and F. Werner and R. White and A. Wierzcholska and Yu Wun Wong and A. Yusafzai and M. Zacharias and D. Zargaryan and A. A. Zdziarski and A. Zech and S. J. Zhu and S. Zouari and N. Żywucka},
journal= {arXiv preprint arXiv:2202.08201},
year = {2022}
}
备注
Submitted 1st Nov. 2021, first release 10th March 2022 (accepted version)