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arXiv 2202.08201astro-ph.HE
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周期性新星RS蛇夫座中时间分辨的强子粒子加速

Time-resolved hadronic particle acceleration in the recurrent Nova RS Ophiuchi

H. E. S. S. Collaboration, F. Aharonian, F. Ait Benkhali, E. O. Angüner, H. Ashkar, M. Backes, V. Baghmanyan, V. Barbosa Martins, R. Batzofin, Y. Becherini, D. … 展开作者

H. E. S. S. Collaboration, F. Aharonian, F. Ait Benkhali, E. O. Angüner, H. Ashkar, M. Backes, V. Baghmanyan, V. Barbosa Martins, R. Batzofin, Y. Becherini, D. Berge, K. Bernlöhr, B. Bi, M. Böttcher, C. Boisson, J. Bolmont, M. de Bony de Lavergne, M. Breuhaus, R. Brose, F. Brun, S. Caroff, S. Casanova, M. Cerruti, T. Chand, A. Chen, G. Cotter, J. Damascene Mbarubucyeye, A. Djannati-Ataï, A. Dmytriiev, V. Doroshenko, C. Duffy, K. Egberts, J. -P. Ernenwein, S. Fegan, K. Feijen, A. Fiasson, G. Fichet de Clairfontaine, G. Fontaine, M. Füßling, S. Funk, S. Gabici, Y. A. Gallant, S. Ghafourizadeh, G. Giavitto, L. Giunti, D. Glawion, J. F. Glicenstein, M. -H. Grondin, G. Hermann, J. A. Hinton, M. Hörbe, W. Hofmann, C. Hoischen, T. L. Holch, M. Holler, D. Horns, Zhiqiu Huang, M. Jamrozy, F. Jankowsky, I. Jung-Richardt, E. Kasai, K. Katarzyński, U. Katz, D. Khangulyan, B. Khélifi, S. Klepser, W. Kluźniak, Nu. Komin, R. Konno, K. Kosack, D. Kostunin, S. Le Stum, A. Lemière, M. Lemoine-Goumard, J. -P. Lenain, F. Leuschner, T. Lohse, A. Luashvili, I. Lypova, J. Mackey, D. Malyshev, D. Malyshev, V. Marandon, P. Marchegiani, A. Marcowith, G. Martí-Devesa, R. Marx, G. Maurin, M. Meyer, A. Mitchell, R. Moderski, L. Mohrmann, A. Montanari, E. Moulin, J. Muller, T. Murach, K. Nakashima, M. de Naurois, A. Nayerhoda, J. Niemiec, A. Priyana Noel, P. O'Brien, S. Ohm, L. Olivera-Nieto, E. de Ona Wilhelmi, M. Ostrowski, S. Panny, M. Panter, R. D. Parsons, G. Peron, S. Pita, V. Poireau, D. A. Prokhorov, H. Prokoph, G. Pühlhofer, M. Punch, A. Quirrenbach, P. Reichherzer, A. Reimer, O. Reimer, M. Renaud, B. Reville, F. Rieger, G. Rowell, B. Rudak, H. Rueda Ricarte, E. Ruiz-Velasco, V. Sahakian, S. Sailer, H. Salzmann, D. A. Sanchez, A. Santangelo, M. Sasaki, J. Schäfer, F. Schüssler, H. M. Schutte, U. Schwanke, M. Senniappan, J. N. S. Shapopi, R. Simoni, A. Sinha, H. Sol, A. Specovius, S. Spencer, Ł. Stawarz, S. Steinmassl, C. Steppa, T. Takahashi, T. Tanaka, A. M. Taylor, R. Terrier, C. Thorpe-Morgan, M. Tsirou, N. Tsuji, R. Tuffs, Y. Uchiyama, T. Unbehaun, C. van Eldik, B. van Soelen, J. Veh, C. Venter, J. Vink, S. J. Wagner, F. Werner, R. White, A. Wierzcholska, Yu Wun Wong, A. Yusafzai, M. Zacharias, D. Zargaryan, A. A. Zdziarski, A. Zech, S. J. Zhu, S. Zouari, N. Żywucka

摘要:

周期性新星是在白矮星外层重复的热核爆炸,这是由于来自双星伴星的新鲜物质的吸积。喷射出的物质撞击伴星的风所产生的冲击,将粒子加速到非常高的能量。我们使用高能立体系统报告了蛇夫座复发新星RS\在2021年爆发后一个月的甚高能(VHE,$\gtrsim100$ \,GeV)伽马射线。VHE发射具有类似的时间分布,以较低的能量GeV的排放,表明一个共同的起源,与两天的峰值流量延迟。这些观测结果限制了随时间变化的粒子散射模型,有利于强子发射的轻子替代方案。这证实了密集风中的冲击为有效的宇宙射线加速到非常高的能量提供了有利的环境。

英文摘要:

Recurrent Novae are repeating thermonuclear explosions in the outer layers of white dwarfs, due to the accretion of fresh material from a binary companion. The shock generated by ejected material slamming into the companion star's wind, accelerates particles to very-high-energies. We report very-high-energy (VHE, $\gtrsim100$\,GeV) gamma rays from the recurrent nova RS\,Ophiuchi up to a month after its 2021 outburst, using the High Energy Stereoscopic System. The VHE emission has a similar temporal profile to lower-energy GeV emission, indicating a common origin, with a two-day delay in peak flux. These observations constrain models of time-dependent particle energization, favouring a hadronic emission scenario over the leptonic alternative. This confirms that shocks in dense winds provide favourable environments for efficient cosmic-ray acceleration to very-high-energies.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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