Radio Transient and SETI Sky Surveys Using the Arecibo L-Band Feed Array

使用阿雷西博 L 波段馈电阵列进行无线电瞬变和 SETI 巡天

基本信息

批准号：
0808175
负责人：
Dan Werthimer
金额：
$ 36.26万
依托单位：
University of California-Berkeley
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2008
资助国家：
美国
起止时间：
2008-08-01 至 2011-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0808175&HistoricalAwards=false
关键词：
Radio Transient SETI Sky Surveys

项目摘要

Dr Werthimer and his collaborators will conduct a survey with the Arecibo radio telescope to search for narrow band and pulsed signals varying over milliseconds to microseconds. They will use the 7-beam Arecibo L-band Feed Array (ALFA); SERENDIP V, a new spectrometer that the team developed under a past NSF award; and SETI@home II, their real-time multi-beam data recorder. Their spectrometer will take data continuously while the Arecibo telescope is being used for other surveys. This will be analyzed by volunteers who provide unused cycles on home computers, on the model of SETI@home. The new survey will be 14 times more sensitive than the best previous work. In addition to artificial narrow-band signals, the survey will search for pulsars with high dispersion measures and short periods or short duty cycles; pulses associated with evaporating primordial black holes; and potentially, giant pulses from undiscovered pulsars. This project will involve the public as active participants. Data sets, project news and educational materials will be distributed via the SETI@home website. Graduate and undergraduate students will help to design the survey and participate in the research. The team's new methods for commensal (parallel) observations, for reduction and analysis of multibeam data, and for removal of radio interference signals, will be useful at other observatories.

韦蒂默博士和他的合作者将利用阿雷西博射电望远镜进行一项调查，以寻找在毫秒到微秒内变化的窄带脉冲信号。他们将使用 7 束阿雷西博 L 波段馈电阵列 (ALFA)； SERENDIP V，该团队根据过去的 NSF 奖项开发的新型光谱仪；以及 SETI@home II，他们的实时多光束数据记录器。他们的光谱仪将连续采集数据，而阿雷西博望远镜则用于其他调查。志愿者将根据 SETI@home 的模型，在家用计算机上提供未使用的周期来对此进行分析。新的调查将比之前最好的调查敏感 14 倍。除了人工窄带信号外，巡天还将寻找色散度高、周期短或占空比短的脉冲星；与蒸发的原始黑洞相关的脉冲；以及来自未被发现的脉冲星的潜在巨大脉冲。该项目将让公众积极参与。数据集、项目新闻和教育材料将通过 SETI@home 网站分发。研究生和本科生将帮助设计调查并参与研究。该团队用于共生（并行）观测、减少和分析多波束数据以及消除无线电干扰信号的新方法将在其他天文台发挥作用。