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arXiv 2008.02127astro-ph.HEastro-ph.IMhep-ex
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用10年的ANTARES资料约束伽马射线暴对高能扩散中微子通量的贡献

Constraining the contribution of Gamma-Ray Bursts to the high-energy diffuse neutrino flux with 10 years of ANTARES data

ANTARES Collaboration, A. Albert, M. André, M. Anghinolfi, G. Anton, M. Ardid, J. -J. Aubert, J. Aublin, B. Baret, S. Basa, B. Belhorma, V. Bertin, S. Biagi, M.… 展开作者

ANTARES Collaboration, A. Albert, M. André, M. Anghinolfi, G. Anton, M. Ardid, J. -J. Aubert, J. Aublin, B. Baret, S. Basa, B. Belhorma, V. Bertin, S. Biagi, M. Bissinger, J. Boumaaza, M. Bouta, M. C. Bouwhuis, H. Brânzaş, R. Bruijn, J. Brunner, J. Busto, A. Capone, L. Caramete, J. Carr, S. Celli, M. Chabab, T. N. Chau, R. Cherkaoui El Moursli, T. Chiarusi, M. Circella, A. Coleiro, M. Colomer-Molla, R. Coniglione, P. Coyle, A. Creusot, A. F. Díaz, G. de Wasseige, A. Deschamps, C. Distefano, I. Di Palma, A. Domi, C. Donzaud, D. Dornic, D. Drouhin, T. Eber, N. El Khayati, A. Enzenhöfer, A. Ettahiri, P. Fermani, G. Ferrara, F. Filippini, L. Fusco, P. Gay, H. Glotin, R. Gozzini, K. Graf, C. Guidi, S. Hallmann, H. van Haren, A. J. Heijboer, Y. Hello, J. J. Hernández-Rey, J. Hößl, J. Hofestädt, F. Huang, G. Illuminati, C. W. James, M. de Jong, P. de Jong, M. Jongen, M. Kadler, O. Kalekin, U. Katz, N. R. Khan-Chowdhury, A. Kouchner, I. Kreykenbohm, V. Kulikovskiy, R. Lahmann, R. Le Breton, D. Lefèvre, E. Leonora, G. Levi, M. Lincetto, D. Lopez-Coto, S. Loucatos, G. Maggi, J. Manczak, M. Marcelin, A. Margiotta, A. Marinelli, J. A. Martínez-Mora, S. Mazzou, K. Melis, P. Migliozzi, M. Moser, A. Moussa, R. Muller, L. Nauta, S. Navas, E. Nezri, A. Nuñez-Castiñeyra, B. O'Fearraigh, M. Organokov, G. E. Păvălaş, C. Pellegrino, M. Perrin-Terrin, P. Piattelli, C. Poirè, V. Popa, T. Pradier, N. Randazzo, S. Reck, G. Riccobene, A. Romanov, A. Sánchez-Losa, D. F. E. Samtleben, M. Sanguineti, P. Sapienza, J. Schnabe, F. Schüssler, M. Spurio, Th. Stolarczyk, B. Strandberg, M. Taiuti, Y. Tayalati, T. Thakore, S. J. Tingay, B. Vallage, V. Van Elewyck, F. Versari, S. Viola, D. Vivolo, J. Wilms, A. Zegarelli, J. D. Zornoza, J. Zúñiga

摘要:

解决冰立方观测到的天体物理中微子通量的起源至关重要。伽马射线暴(GRB)是为数不多的能够通过p $γ$相互作用获得所需能量以产生这种中微子通量的天体物理源之一。在这项工作中,ANTARES数据已被用于搜索与2007年至2017年发生的784个GRB在空间和时间上重合的上行μ子中微子。对于每个伽玛射线暴,预期的中微子通量已计算的内部冲击模型的框架和知识的缺乏对大多数源红移和其他固有参数的排放机制的影响进行了量化。研究发现,模型参数设置的径向距离冲击碰撞发生中微子通量的预期有最大的影响。特别是,大量的洛伦兹因子的源喷出物和最小的变化时间尺度被发现显着贡献的GRB中微子通量的不确定性。对于选定的来源,ANTARES数据进行了分析,通过扩大最大似然策略,最大限度地提高发现概率的叠加样本。由于没有中微子事件通过优化程序设定的质量削减,根据模型,已经推导出了总预期扩散中微子通量的90%置信水平上限(及其不确定性)。伽玛射线暴对观测到的100TeV附近的天体物理中微子扩散通量的贡献被限制在10%以内。

英文摘要:

Addressing the origin of the astrophysical neutrino flux observed by IceCube is of paramount importance. Gamma-Ray Bursts (GRBs) are among the few astrophysical sources capable of achieving the required energy to contribute to such neutrino flux through p$γ$ interactions. In this work, ANTARES data have been used to search for upward going muon neutrinos in spatial and temporal coincidence with 784 GRBs occurred from 2007 to 2017. For each GRB, the expected neutrino flux has been calculated in the framework of the internal shock model and the impact of the lack of knowledge on the majority of source redshifts and on other intrinsic parameters of the emission mechanism has been quantified. It is found that the model parameters that set the radial distance where shock collisions occur have the largest impact on neutrino flux expectations. In particular, the bulk Lorentz factor of the source ejecta and the minimum variability timescale are found to contribute significantly to the GRB-neutrino flux uncertainty. For the selected sources, ANTARES data have been analysed, by maximising the discovery probability of the stacking sample through an extended maximum-likelihood strategy. Since no neutrino event passed the quality cuts set by the optimisation procedure, 90\% confidence level upper limits (with their uncertainty) on the total expected diffuse neutrino flux have been derived, according to the model. The GRB contribution to the observed diffuse astrophysical neutrino flux around 100 TeV is constrained to be less than 10\%.

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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