基于2012至2017年IceCube数据搜寻时变天体物理中微子发射
高能天体物理现象
2021-06-15 v1
摘要
高能中微子是高能宇宙的独特信使，示踪宇宙线加速过程。本文介绍聚焦于时变中微子点源搜寻的分析工作。我们对全天空进行扫描，不对源候选体作先验假设，在IceCube中微子天文台2012至2017年采集的数据中寻找高能中微子的时空聚集现象。由于所有结果均与本底预期一致，该搜寻在此期间未发现具有统计显著性的时变中微子信号。在此研究周期内，耀变体3C 279表现出强烈变率，引发了2015年6月观测到的极为显著的伽马射线耀发。该事件促使我们对该耀变体开展专门研究，即搜寻与伽马射线发射相关的时变中微子信号。未发现时变信号的证据。因此，我们推导了中微子注量的上限，从而能够约束强子发射模型。
引用
@article{arxiv.2012.01079,
title = {A search for time-dependent astrophysical neutrino emission with IceCube data from 2012 to 2017},
author = {IceCube Collaboration and R. Abbasi and M. Ackermann and J. Adams and J. A. Aguilar and M. Ahlers and M. Ahrens and C. Alispach and A. A. Alves and N. M. Amin and R. An and K. Andeen and T. Anderson and I. Ansseau and G. Anton and C. Argüelles and S. Axani and X. Bai and A. Balagopal V. and A. Barbano and S. W. Barwick and B. Bastian and V. Basu and V. Baum and S. Baur and R. Bay and J. J. Beatty and K. -H. Becker and J. Becker Tjus and C. Bellenghi and S. BenZvi and D. Berley and E. Bernardini and D. Z. Besson and G. Binder and D. Bindig and E. Blaufuss and S. Blot and S. Böser and O. Botner and J. Böttcher and E. Bourbeau and J. Bourbeau and F. Bradascio and J. Braun and S. Bron and J. Brostean-Kaiser and A. Burgman and R. S. Busse and M. A. Campana and C. Chen and D. Chirkin and S. Choi and B. A. Clark and K. Clark and L. Classen and A. Coleman and G. H. Collin and J. M. Conrad and P. Coppin and P. Correa and D. F. Cowen and R. Cross and P. Dave and C. De Clercq and J. J. 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journal= {arXiv preprint arXiv:2012.01079},
year = {2021}
}