The Petabyte Project for Fast Radio Transients

快速无线电瞬变的 PB 项目

• 批准号: 2108673
• 负责人: Sarah Spolaor
• 金额: $ 43.28万
• 依托单位: West Virginia University Research Corporation
• 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=2108673&HistoricalAwards=false
• 关键词: Petabyte; Project; Fast; Radio; Transients

We are in a golden era in the investigation of flashing, short-duration astronomical events detected by radio telescopes. Progress in understanding novel, highly luminous phenomena like fast radio bursts (FRBs) and highly intermittent pulsars is being enabled by the broad availability of archives, new observing systems on a host of telescopes worldwide, and extensive computing systems in place to provide throughput for huge amounts of data. This field has rapidly evolved in the past decade. Searches for such transients have been done by constantly evolving analysis techniques, each improving on the last. However, new techniques are typically applied to only a small set of data. A research group at West Virginia University (WVU) will undertake “The Petabyte Project,” which will harness many diverse archival and new data sets to perform an unprecedented uniform search across multiple observing systems and radio frequencies. This search for transient events has key analysis structures in place that were not available in past searches, including a systematic check of completeness of the constituent surveys, and a rigorously tested machine-learning-based event classifier. To broaden the impact of their work, the researchers will work with two strong existing outreach programs at WVU, the Science Public Outreach Team (SPOT) to introduce area high-school students to machine learning applications, and the Pulsar Search Collaboratory (PSC) summer program, to enable high school students to participate in the research by helping to classify radio sources.There will be several key scientific, software, and data outcomes from this search. The work will lead to the discovery of new FRBs and pulsars, particularly at high radio frequencies where few searches have been done. It will provide the first statements on the completeness of FRB searches as a function of dispersion measure (distance) and radio frequency, leading to new knowledge on the diversity and range of FRB properties. The team will also provide the first broad, blind multi-frequency exploration of extreme intermittency in the radio pulsar population. All code generated by this project will be open-access and accompanied by in-depth documentation, allowing broad use of the unified transient data read/write tool, machine-learning suite, pipeline, and completeness assessment software. Labelled search products will be made public on a permanent server for use in future interference, fast-transients, or machine-learning studies.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.

在调查射程望远镜检测到的闪烁，短期天文事件的调查中，我们正处于黄金时代。了解新颖，高度发光现象（如快速无线电爆发（FRB）和高度间歇性脉冲星的进展，都可以通过广泛的档案供应，全球望远镜上的新观察者以及广泛的计算系统，以提供大量数据的吞吐量。在过去的十年中，这个领域迅速发展。搜索此类瞬变是通过不断发展的分析技术来完成的，每个技术都在最后改进。但是，通常仅将新技术应用于一小部分数据。西弗吉尼亚大学（WVU）的一个研究小组将进行“ PETABYTE项目”，该项目将利用许多潜水员档案和新数据集，以在多个观察者系统和无线电频率上进行前所未有的统一搜索。对瞬态事件的搜索具有过去搜索中无法使用的关键分析结构，包括对组成量调查的完整性进行系统检查，以及严格测试的基于机器学习的事件分类器。为了扩大其工作的影响，研究人员将与WVU的两个强大的现有外展计划合作，科学公共外展团队（SPOT）将高中生的高中生介绍给机器学习应用，以及PULSAR搜索协作（PSC）夏季计划，以使高中学生能够通过对无线科学进行分类，从而使许多关键的科学搜索能够帮助研究。这项工作将导致发现新的FRB和PULSARS，尤其是在很少进行搜索的高广播频率下。它将提供有关FRB搜索完整性的第一个语句，这是分散度量（距离）和射频的函数，从而导致有关FRB属性多样性和范围的新知识。该团队还将提供第一个广泛的，盲目的多频探索无线电脉冲星人口中极端间歇性的探索。该项目生成的所有代码都将是开放访问并通过深入文档来完成的，从而可以广泛使用统一的瞬态数据读/写工具，机器学习套件，管道和完整评估软件。标记的搜索产品将在永久服务器上公开，以供将来的干扰，快速变形或机器学习研究。该奖项反映了NSF的法定任务，并通过使用基金会的知识分子优点和更广泛的影响评估标准来通过评估来获得珍贵的支持。