Collaborative Research: WoU-MMA: New Advances to Enable Multi-Messenger Neutrino Astrophysics with the Radio Neutrino Observatory in Greenland

合作研究：WoU-MMA：与格陵兰岛射电中微子天文台实现多信使中微子天体物理学的新进展

• 批准号: 2112352
• 负责人: Abigail Vieregg
• 金额: $ 60.75万
• 依托单位: University of Chicago
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2112352&HistoricalAwards=false
• 关键词: Collaborative; Research; WoU; MMA; New

This award supports research in relativity and relativistic astrophysics and it addresses the priority areas of NSF's "Windows on the Universe" Big Idea. Observations of high energy astrophysical neutrinos further our understanding of the most powerful cosmic ray accelerators and explosive events in the universe. Combining astrophysical neutrino observations with observations from other messengers like photons, cosmic rays, and gravitational waves allows us to view the most violent processes in the universe through multiple lenses and make new insights into the physics that drives them. Neutrino observations with IceCube have shown that the neutrino sky is complex and dynamic, revealing both an unresolved, but steady, background of neutrinos and flares of neutrinos associated with a blazar. The work performed under this award will establish the first connection between a radio neutrino telescope and other multi-messenger observatories, expanding our multi-messenger view of the universe to include the highest-energy neutrinos. In addition, this work will enable a broad range of interdisciplinary science, from glaciology to biology, and engage people from a broad range of backgrounds from around the world in multi-messenger astrophysics.The Radio Neutrino Observatory in Greenland is currently under construction at Summit Station and is optimized to search for the radio flash generated by neutrino interactions in polar ice, building on the combined successes and expertise of earlier generations of radio detectors. Its leading sensitivity, large footprint, and precision pointing will deliver unprecedented measurements of the high-energy neutrino flux. RNO-G is also the first ultra-high energy neutrino observatory with a view of the Northern sky. As such it has unique capabilities for multi-messenger observations of the highest energy neutrinos sources, including those initiated by lower-energy neutrino observations made with IceCube. The work performed under this award will provide the necessary upgrades to the RNO-G project, as it is being built, to realize its potential as a state-of-the-art instrument fully integrated into the world-wide network of multi-messenger observatories. This proposed program will improve RNO-G's sensitivity and angular resolution and enable it to respond rapidly to important targets, necessary advancements for multi-messenger campaigns. This work will lay the groundwork to provide the broader multi-messenger community high-quality event reconstructions shortly after the first high-energy neutrino candidates are identified. Under this award, the proposal team will (1) enhance neutrino pointing resolution through improved antenna designs and coincident observations in multiple stations, (2) develop real-time event processing capabilities, allowing for quicker turnaround on candidates and increased trigger rates to improve sensitivity, and (3) enable RNO-G to respond to incoming multi-messenger alerts from leading observatories, temporarily boosting sensitivity in the alert direction. The team will use these advances to conduct the first searches for multi-messenger point sources and transient sources with RNO-G.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该奖项支持相对论和相对论天体物理学的研究，并介绍了NSF“宇宙上的Windows”的优先领域。对高能量天体物理中微子的观察进一步了解了我们对宇宙中最强大的宇宙射线加速器和爆炸性事件的理解。 将天体物理中微子的观测与来自光子，宇宙射线和引力波（宇宙射线和引力波）等其他使者的观察结果相结合，使我们能够通过多个镜头查看宇宙中最暴力的过程，并对驱动它们的物理学进行新的见解。 IceCube的中微子观察结果表明，中微子的天空是复杂而动态的，既揭示了中微子的中微子的尚未解决但稳定的背景，又揭示了与大型中微子相关的中微子的耀斑。根据该奖项执行的工作将建立无线电中微子望远镜和其他多理智的观测站之间的第一个联系，从而扩大了我们对宇宙的多理智观点，以包括最高的能量中微子。 此外，这项工作将使从冰川学到生物学从世界各地广泛背景的人吸引各种各样的跨学科科学。其领先的灵敏度，较大的足迹和精度指向将提供前所未有的高能中微子通量的测量值。 RNO-G也是第一个超高的能量中微子天文台，可欣赏北方天空。因此，它具有对最高能量中微子来源的多通间观察的独特功能，包括由IceCube进行的低能量中微子观察到的。根据该奖项进行的工作将为RNO-G项目提供必要的升级，以实现其作为最先进的工具的潜力，该工具完全集成到全球的多理想者观测站网络中。该提出的计划将提高RNO-G的敏感性和角度解决方案，使其能够迅速对重要目标的响应，这是多理智运动运动的必要进步。 这项工作将为基础，以在确定第一个高能源中微子候选人之后不久，提供更广泛的多门社区高质量活动重建。 根据该奖项，提案团队（1）通过改进天线设计和多个站点的重合观察结果来增强中微子指向解决方案，（2）（2）发展实时事件处理能力，从而使候选人和提高触发速度更快地转化以提高敏感性，并提高触发敏感性，并启动RNO-G的敏感性，（3）启动RNO-G的启动，（3），（3）启动了临时的启动，（3） 方向。该团队将使用这些进步来对Messenger Point来源进行首次搜索，并使用RNO-G进行暂时的来源。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子和更广泛影响的评估评估标准来评估值得支持的。

项目成果

Design and sensitivity of the Radio Neutrino Observatory in Greenland (RNO-G)

• DOI: 10.1088/1748-0221/16/03/p03025
• 发表时间: 2020-10
• 期刊: Journal of Instrumentation
• 影响因子: 1.3
• 作者: J. Aguilar;P. Allison;J. Beatty;H. Bernhoff;D. Besson;N. Bingefors;O. Botner;S. Buitink;K. Carter;B. Clark;A. Connolly;P. Dasgupta;S. D. Kockere;K. D. Vries;C. Deaconu;M. DuVernois;N. Feigl;D. García-Fernández;C. Glaser;A. Hallgren;S. Hallmann;J. Hanson;B. Hendricks;B. Hokanson-Fasig;C. Hornhuber;K. Hughes;A. Karle;J. Kelley;S. Klein;R. Krebs;R. Lahmann;M. Magnuson;T. Meures;Z. Meyers;A. Nelles;A. Novikov;E. Oberla;B. Oeyen;H. Pandya;I. Plaisier;L. Pyras;D. Ryckbosch;O. Scholten;D. Seckel;D. Smith;D. Southall;J. Torres;S. Toscano;D. V. D. Broeck-D.-V.-D.-Broeck-2131955910;N. Eijndhoven;A. Vieregg;C. Welling;S. Wissel;R. Young;A. Zink

In situ , broadband measurement of the radio frequency attenuation length at Summit Station, Greenland

格陵兰萨米特站射频衰减长度的现场宽带测量

• DOI: 10.1017/jog.2022.40
• 发表时间: 2022
• 期刊: Journal of Glaciology
• 影响因子: 3.4
• 作者: Aguilar, J. A.;Allison, P.;Beatty, J. J.;Besson, D.;Bishop, A.;Botner, O.;Bouma, S.;Buitink, S.;Cataldo, M.;Clark, B. A.
• 通讯作者: Clark, B. A.