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First SETI Observations with China's Five-hundred-meter Aperture Spherical Radio Telescope (FAST)

文献类型：期刊论文

作者Zhang, Zhi-Song6,7,8,9; Werthimer, Dan6,7; Zhang, Tong-Jie5; Cobb, Jeff6,7; Korpela, Eric7; Anderson, David7; Gajjar, Vishal6,7; Lee, Ryan3,4,6; Li, Shi-Yu5; Pei, Xin2,8
刊名ASTROPHYSICAL JOURNAL
出版日期2020-03-10
卷号891期号:2页码:174
关键词Astrobiology Sky surveys Astronomical instrumentation
ISSN号0004-637X
DOI10.3847/1538-4357/ab7376
产权排序8
英文摘要The Search for Extraterrestrial Intelligence (SETI) attempts to address the possibility of the presence of technological civilizations beyond the Earth. Benefiting from high sensitivity, large sky coverage, and an innovative feed cabin for China's Five-hundred-meter Aperture Spherical radio Telescope (FAST), we performed SETI's first observations with FAST's newly commissioned 19 beam receiver; we report preliminary results in this paper. Using the data stream produced by the SERENDIP VI real-time multibeam SETI spectrometer installed at FAST, as well as its off-line data processing pipelines, we identify and remove four kinds of radio frequency interference (RFI): zone, broadband, multibeam, and drifting, utilizing the Nebula SETI software pipeline combined with machine-learning algorithms. After RFI mitigation, the Nebula pipeline identifies and ranks interesting narrowband candidate ET signals, scoring candidates by the number of times candidate signals have been seen at roughly the same sky position and same frequency, signal strength, proximity to a nearby star or object of interest, along with several other scoring criteria. We show four example candidate groups that demonstrate this RFI mitigation and candidate selection. This preliminary testing on FAST data helps to validate our SETI instrumentation techniques as well as our data processing pipeline.
WOS关键词PROJECT
资助项目National Key R&D Program of China[2017YFA0402600] ; National Science Foundation of China[11929301] ; National Science Foundation of China[11573006] ; National Science Foundation of China[11528306] ; National Science Foundation of China[11803054] ; National Science Foundation of China[11690024] ; National Science Foundation of China[11725313] ; China Academy of Sciences International Partnership Program[114A11KYSB20160008] ; Berkeley's Marilyn and Watson Alberts SETI Chair funds ; Berkeley SETI Research Center ; Radio Astronomy Laboratory at Berkeley ; National Astronomical Observatories, Chinese Academy of Sciences ; FAST group
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000521396900001
出版者IOP PUBLISHING LTD
资助机构National Key R&D Program of China ; National Science Foundation of China ; China Academy of Sciences International Partnership Program ; Berkeley's Marilyn and Watson Alberts SETI Chair funds ; Berkeley SETI Research Center ; Radio Astronomy Laboratory at Berkeley ; National Astronomical Observatories, Chinese Academy of Sciences ; FAST group
源URL[http://ir.xao.ac.cn/handle/45760611-7/3443]  
专题射电天文研究室_数字技术实验室
通讯作者Zhang, Zhi-Song
作者单位1.Chinese Acad Sci, CAS Key Lab FAST, Natl Astron Observ, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Xinjiang Astron Observ, 150,Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China
3.Univ Calif Berkeley, Dept Comp Sci, Berkeley, CA 94720 USA
4.Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
5.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China
6.Univ Calif Berkeley, Dept Astron, 601 Campbell Hall, Berkeley, CA 94720 USA
7.Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA
8.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
9.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Zhi-Song,Werthimer, Dan,Zhang, Tong-Jie,et al. First SETI Observations with China's Five-hundred-meter Aperture Spherical Radio Telescope (FAST)[J]. ASTROPHYSICAL JOURNAL,2020,891(2):174.
APA Zhang, Zhi-Song.,Werthimer, Dan.,Zhang, Tong-Jie.,Cobb, Jeff.,Korpela, Eric.,...&Li, Di.(2020).First SETI Observations with China's Five-hundred-meter Aperture Spherical Radio Telescope (FAST).ASTROPHYSICAL JOURNAL,891(2),174.
MLA Zhang, Zhi-Song,et al."First SETI Observations with China's Five-hundred-meter Aperture Spherical Radio Telescope (FAST)".ASTROPHYSICAL JOURNAL 891.2(2020):174.

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来源：新疆天文台

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