利用DECam搜寻与IceCube中微子相关的爆发光学暂现源
高能天体物理现象
2022-05-23 v2
摘要
在本工作中，我们研究IceCube的实时TeV–PeV能段中微子警报与以核坍缩超新星（CC SNe）形式出现的光学对应体之间的成协可能性。IceCube警报的光学后随需要两种主要仪器能力：（1）深成像，因为73%的中微子来自红移z > 0.3的CC SNe；（2）大视场（FoV），因为典型的IceCube缪子中微子指向精度约为~1度。利用Blanco/DECam（gri波段至24星等，2.2度直径视场），我们在每次警报后约3周内、约6个夜晚对两个IceCube警报IC170922A与IC171106A进行了触发式光学后随观测。对于IC170922A（IC171106A）的后随观测，我们预期在z ≲ 0.3处12.1%（9.5%）的相符CC SNe可被探测到，且平均而言，中微子90%包含区域内分别有0.23（0.07）颗非成协SNe也通过我们的筛选标准。我们在视场内发现两颗与中微子警报时间相符的候选CC SNe，但在90%包含区域内没有，这与这些观测的背景CC SNe预期速率在统计上一致。若CC SNe是TeV–PeV中微子的主导源，我们预期使用类似本工作的DECam观测，对于约60（约200）个带有（不带有）所有候选体红移信息的中微子警报，可在3σ置信水平探测到相符CC SNe的超出。
引用
@article{arxiv.1907.07193,
title = {A DECam Search for Explosive Optical Transients Associated with IceCube Neutrinos},
author = {R. Morgan and K. Bechtol and R. Kessler and M. Sako and K. Herner and Z. Doctor and D. Scolnic and I. Sevilla-Noarbe and A. Franckowiak and K. N. Neilson and M. Kowalski and A. Palmese and E. Swann and B. P. Thomas and A. K. Vivas and A. Drlica-Wagner and A. Garcia and D. Brout and F. Paz-Chinchón and E. Neilsen and H. T. Diehl and M. Soares-Santos and T. M. C. Abbott and S. Avila and E. Bertin and D. Brooks and E. Buckley-Geer and A. Carnero Rosell and M. Carrasco Kind and J. Carretero and R. Cawthon and M. Costanzi and J. De Vicente and S. Desai and P. Doel and B. Flaugher and P. Fosalba and J. Frieman and J. García-Bellido and E. Gaztanaga and D. W. Gerdes and D. Gruen and R. A. Gruendl and J. Gschwend and G. Gutierrez and D. L. Hollowood and K. Honscheid and D. J. James and N. Kuropatkin and M. Lima and M. A. G. Maia and J. L. Marshall and F. Menanteau and C. J. Miller and R. Miquel and A. A. Plazas and E. Sanchez and V. Scarpine and M. Schubnell and S. Serrano and M. Smith and F. Sobreira and E. Suchyta and M. E. C. Swanson and G. Tarle and V. Vikram and A. R. Walker and J. Weller},
journal= {arXiv preprint arXiv:1907.07193},
year = {2022}
}
备注
Published in ApJ