The Breakthrough Listen Search for Intelligent Life: Public Data, Formats, Reduction, and Archiving
The Breakthrough Listen Search for Intelligent Life: Public Data, Formats, Reduction, and Archiving
复制标题
智能生活的突破性聆听搜索：公共数据、格式、缩减和归档
DOI：
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发表时间：
2019
影响因子：
3.5
通讯作者：
Yunfan Gerry Zhang
中科院分区：
文献类型：
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作者：
M. Lebofsky;S. Croft;A. Siemion;D. Price;J. E. Enriquez;H. Isaacson;D. MacMahon;David Anderson;Bryan Brzycki;J. Cobb;Daniel J. Czech;D. DeBoer;J. DeMarines;J. Drew;Griffin Foster;V. Gajjar;N. Gizani;G. Hellbourg;Eric J. Korpela;B. Lacki;Sofia Z. Sheikh;D. Werthimer;P. Worden;A. Yu.;Yunfan Gerry Zhang
“突破聆听”是迄今为止最全面、最灵敏的外星智慧搜索 (SETI)，采用了一系列国际观测设施，包括射电望远镜和光学望远镜。在“倾听”计划的前三年中，绿岸望远镜（GBT）、帕克斯望远镜和自动行星探测器已经观测到了数千个目标。在 GBT 和 Parkes，观测频率范围为 700 MHz 至 26 GHz，原始数据量平均超过 1 PB day−1。伪实时软件光谱套件用于生成总计约 400 GB h−1 GHz−1 beam−1 的多分辨率光谱图。对于某些目标，还会保留原始基带电压数据。使用自动行星查找器进行观测可产生二维和一维高分辨率 (R ∼ 105) 中阶梯光栅光谱数据。尽管 Listen 数据采集的主要目的是用于 SETI，但也利用这些数据进行了一系列辅助科学研究，包括快速射电爆发的研究。其他当前和潜在的研究主题包括谱线研究、寻找某些种类的暗物质、星际散射探测器、脉冲星搜索、无线电瞬态搜索和恒星活动研究。监听数据还被用于算法的开发，包括调制方案分类和异常值检测的机器学习方法，这些方法不仅适用于天文学研究，而且适用于广泛的科学和工程。在本文中，我们描述了用于收集、缩减、归档和公共传播监听数据的硬件和软件管道。我们描述了数据格式和工具，并展示了 Breakthrough Listen Data Release 1.0 (BLDR 1.0)，这是一组已定义的公开可用的原始数据和缩减数据，总计 1 PB。
Breakthrough Listen is the most comprehensive and sensitive search for extraterrestrial intelligence (SETI) to date, employing a collection of international observational facilities including both radio and optical telescopes. During the first three years of the Listen program, thousands of targets have been observed with the Green Bank Telescope (GBT), Parkes Telescope and Automated Planet Finder. At GBT and Parkes, observations have been performed ranging from 700 MHz to 26 GHz, with raw data volumes averaging over 1 PB day−1. A pseudo-real time software spectroscopy suite is used to produce multi-resolution spectrograms amounting to approximately 400 GB h−1 GHz−1 beam−1. For certain targets, raw baseband voltage data is also preserved. Observations with the Automated Planet Finder produce both two-dimensional and one-dimensional high-resolution (R ∼ 105) echelle spectral data. Although the primary purpose of Listen data acquisition is for SETI, a range of secondary science has also been performed with these data, including studies of fast radio bursts. Other current and potential research topics include spectral line studies, searches for certain kinds of dark matter, probes of interstellar scattering, pulsar searches, radio transient searches and investigations of stellar activity. Listen data are also being used in the development of algorithms, including machine-learning approaches to modulation scheme classification and outlier detection, that have wide applicability not just for astronomical research but for a broad range of science and engineering. In this paper, we describe the hardware and software pipeline used for collection, reduction, archival, and public dissemination of Listen data. We describe the data formats and tools, and present Breakthrough Listen Data Release 1.0 (BLDR 1.0), a defined set of publicly available raw and reduced data totaling 1 PB.