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

doi:10.3847/1538-4357/ab7376

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	First SETI Observations with China's Five-hundred-meter Aperture Spherical Radio Telescope (FAST)
	Zhang, Zhi-Song 1,2,3,4; Werthimer, Dan 3,4; Zhang, Tong-Jie 5; Cobb, Jeff 3,4; Korpela, Eric 3; Anderson, David 3; Gajjar, Vishal 3,4; Lee, Ryan 4,6,7; Li, Shi-Yu 5; Pei, Xin2,8 ; Zhang, Xin-Xin 1; Huang, Shi-Jie 1; Wang, Pei 1; Zhu, Yan 1; Duan, Ran 1; Zhang, Hai-Yan 1; Jin, Cheng-jin 1; Zhu, Li-Chun 1; Li, Di 1,2,9
	2020-03-10
Source Publication	ASTROPHYSICAL JOURNAL
ISSN	0004-637X
Volume	891 Issue:2 Pages:174
Contribution Rank	8
Abstract	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.
Keyword	Astrobiology Sky surveys Astronomical instrumentation
DOI	10.3847/1538-4357/ab7376
Indexed By	SCI
Language	英语
WOS Keyword	PROJECT
Funding Project	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 Research Area	Astronomy & Astrophysics
WOS Subject	Astronomy & Astrophysics
WOS ID	WOS:000521396900001
Publisher	IOP PUBLISHING LTD
Funding Organization	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
Citation statistics	Cited Times:34[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.xao.ac.cn/handle/45760611-7/3444
Collection	射电天文研究室_数字技术实验室
Corresponding Author	Zhang, Zhi-Song
Affiliation	1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA 4.Univ Calif Berkeley, Dept Astron, 601 Campbell Hall, Berkeley, CA 94720 USA 5.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China 6.Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA 7.Univ Calif Berkeley, Dept Comp Sci, Berkeley, CA 94720 USA 8.Chinese Acad Sci, Xinjiang Astron Observ, 150,Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 9.Chinese Acad Sci, CAS Key Lab FAST, Natl Astron Observ, Beijing 100101, Peoples R China
Recommended Citation 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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