SETIBURST: A Robotic, Commensal, Realtime Multi-science Backend for the Arecibo Telescope
SETIBURST: A Robotic, Commensal, Realtime Multi-science Backend for the Arecibo Telescope
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DOI：
10.3847/1538-4365/228/2/21
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发表时间：
2017-01
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影响因子：
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通讯作者：
J. Chennamangalam;D. MacMahon;J. Cobb;A. Karastergiou;A. Siemion;K. Rajwade;W. Armour;V. Gajjar;D. Lorimer;M. Mclaughlin;D. Werthimer;Christopher Williams
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文献类型：
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作者：
J. Chennamangalam;D. MacMahon;J. Cobb;A. Karastergiou;A. Siemion;K. Rajwade;W. Armour;V. Gajjar;D. Lorimer;M. Mclaughlin;D. Werthimer;Christopher Williams
射电天文学传统上依赖于天文台分配时间给观察员专用他们的望远镜。这种方案的缺点是，这样收集的数据很少用于其他天文学应用，在许多情况下，是不合适的。例如，经过适当校准的脉冲星搜索数据，经过一些简化，可以用于谱线勘测。一个支持将多个应用程序插入望远镜以执行数据分析的后端将大大增加该设施的科学吞吐量。在本文中，我们提出了“SETIBURST”，一个机器人，自动化，实时多科学后端的305米阿雷西博望远镜。该系统使用1.4 GHz，七波束阿雷西博L波段馈电阵列（ALFA）接收器，无论何时运行。SETIBURST目前支持两个应用程序：SERENDIP VI，一个SETI光谱仪，正在进行搜索技术生命的迹象，和ALFABURST，一个快速瞬变搜索系统，正在进行快速无线电脉冲（FRB）的调查。根据FRB事件发生率和ALFA的预期使用情况，我们预计未来一年将检测到0-5个FRB。SETIBURST还提供了插入更多应用程序的选项。我们概述了我们的仪器计划的动机和两个调查的科学动机，沿着他们的描述和相关的讨论。
Radio astronomy has traditionally depended on observatories allocating time to observers for exclusive use of their telescopes. The disadvantage of this scheme is that the data thus collected is rarely used for other astronomy applications, and in many cases, is unsuitable. For example, properly calibrated pulsar search data can, with some reduction, be used for spectral line surveys. A backend that supports plugging in multiple applications to a telescope to perform commensal data analysis will vastly increase the science throughput of the facility. In this paper, we present “SETIBURST,” a robotic, commensal, realtime multi-science backend for the 305 m Arecibo Telescope. The system uses the 1.4 GHz, seven-beam Arecibo L-band Feed Array (ALFA) receiver whenever it is operated. SETIBURST currently supports two applications: SERENDIP VI, a SETI spectrometer that is conducting a search for signs of technological life, and ALFABURST, a fast transient search system that is conducting a survey of fast radio bursts (FRBs). Based on the FRB event rate and the expected usage of ALFA, we expect 0–5 FRB detections over the coming year. SETIBURST also provides the option of plugging in more applications. We outline the motivation for our instrumentation scheme and the scientific motivation of the two surveys, along with their descriptions and related discussions.