Detection of Fast Radio Bursts from Cosmic Radio Sources with Arecibo and the Green Bank Telescope

使用阿雷西博和格林班克望远镜探测宇宙射电源的快速射电爆发

• 批准号: 1616042
• 负责人: Duncan Lorimer
• 金额: $ 31.76万
• 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: 2016
• 资助国家: 美国
• 起止时间: 2016-09-01 至 2019-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1616042&HistoricalAwards=false
• 关键词: Detection; Fast; Radio; Bursts; Cosmic

1. Violent, explosive events throughout the Universe often produce relatively brief signals that astronomers detect. A huge, abrupt increase in brightness accompanies a supernova explosion that completely destroys the star. The brief ?chirp? of gravitational radiation detected by the Laser Interferometer Gravitational-wave Observatory in September 2015 came from the merger of two massive black holes. And in 2007, a ?chirp? of radio emission lasting a few thousandths of a second signaled the discovery of a previously unknown class of astronomical object. Astronomers think that this and other so-called ?Fast Radio Bursts? (FRBs) originate in distant galaxies far out in the Universe. To find out what are the sources of the FRBs, astronomers need to discover many more examples, determine their properties, and if possible identify them with events observed in other ways. This project will deploy radio detectors at the 1000-foot-diameter radio telescope in Arecibo, Puerto Rico, and at the Green Bank Telescope in West Virginia. The detectors will conduct automated searches for FRBs and communicate the discoveries within minutes to enable follow-up observations. The scientists will also share their results to the general public through a public website, a 3D video, and planetarium programs. Even their undergraduate students will help. They will convey the excitement of research in radio astronomy to more than 3,600 K-12 students each year.2. A bright millisecond radio burst discovered in 2007 indicated the existence of a previously unknown population of radio sources. Recent discoveries of more of these Fast Radio Bursts (FRBs) has confirmed the existence of this population, which has been hailed as one of the most important discoveries in radio astronomy in recent decades. With typical durations of a few milliseconds, FRBs are strongly dispersed in frequency, suggesting an extragalactic origin. The primary goal of this project is to deploy autonomous dedicated detectors at the Arecibo radio telescope in Puerto Rico and at the Green Bank Telescope to search for more of these transient events across large swaths of the sky, to make the detections rapidly available (within minutes) for follow-up observations at other parts of the electromagnetic spectrum and in gravitational-wave data, and to record and characterize the properties of these detections. The Principal Investigators anticipate finding dozens of FRBs each year as well as possibly discovering bursting Galactic neutron stars and possibly completely new classes of transient radio sources. The Principal Investigators also have an extensive and well-developed plan to employ their research for broader societal impacts. These include a public website for rapid dissemination of their results to non-scientists, presentations about radio astronomy by undergraduates to more than 3,600 K-12 students per year, and the development of a 3D video about the research that has strong potential to grab the public interest and teach the public about science through astronomy.

1。整个宇宙中的暴力，爆炸性事件通常会产生天文学家发现的相对简短的信号。 超新星爆炸伴随着亮度的巨大，突然增加，完全破坏了这颗星星。 短暂的chirp？ 2015年9月，激光干涉仪重力波观测器检测到的重力辐射来自两个大型黑洞的合并。 在2007年，呼声？持续几秒钟的无线电发射标志​​着发现了以前未知类别的天文对象。 天文学家认为这个和其他所谓的快速无线电爆发？ （FRB）起源于宇宙中遥远的星系。 为了找出FRB的来源，天文学家需要发现更多示例，确定其特性，并在可能的情况下与以其他方式观察到的事件一起识别它们。 该项目将在Arecibo，波多黎各的1000英尺电台望远镜和西弗吉尼亚州的绿色银行望远镜上部署无线电探测器。 探测器将对FRB进行自动搜索，并在几分钟内传达发现以实现后续观察。 科学家还将通过公共网站，3D视频和天文馆计划分享他们的结果。 甚至他们的本科生也会有所帮助。 他们将每年向3600多名K-12学生传达射电天文学研究的兴奋。2。 2007年发现的明亮的毫秒无线电爆发表明，存在以前未知的无线电人群。 最近发现，最近几十年来，更多这些快速无线电爆发（FRB）证实了这一人群的存在，被誉为射电天文学中最重要的发现之一。 在几毫秒的典型持续时间内，FRB的频率强烈分散，表明是外层状的起源。 该项目的主要目的是在波多黎各的Arecibo射电望远镜和绿色银行望远镜上部署自主的专用探测器，以在天空的大范围内搜索更多这些短暂事件，以使探测迅速（在几分钟之内）进行记录的其他部分，并在这些部分的其他部分中进行了这些属性，并在这些属性的地方进行了这些属性，并在这些属性中进行了这些属性以及这些属性的图案，并在这些属性中进行了这些属性和图案，并具有这些图案的范围和图案，并在这些属性中进行了范围的图案和图案，并涉及这些探测器的范围和范围。检测。 首席研究人员预计每年会发现数十个FRB，并可能发现破裂的银河中子星星，并可能是全新的瞬态无线电来源。 首席研究人员还制定了广泛且发达的计划，以采用他们的研究来实现更广泛的社会影响。 这些网站包括一个公共网站，以快速将其结果传播给非科学家，每年对本科生的射电天文学的演讲，每年向超过3,600 k-12的学生传播射电天文学，并开发了有关该研究的3D视频，该研究具有强烈的潜力，可以通过天文学来吸引公众对公众的兴趣并传达公众有关科学的知识。