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Blind search for 21-cm absorption systems using a new generation of Chinese radio telescopes
Yu, Hao-Ran1,2; Pen, Ue-Li2,3,4,5; Zhang, Tong-Jie6; Li, Di7,8; Chen, Xuelei9
2017-06-01
发表期刊RESEARCH IN ASTRONOMY AND ASTROPHYSICS
卷号17期号:6
摘要Neutral hydrogen clouds are known to exist in the Universe, however their spatial distributions and physical properties are poorly understood. Such missing information can be studied by the new generation of Chinese radio telescopes through a blind search of 21-cm absorption systems. We forecast the capabilities of surveys of 21-cm absorption systems by two representative radio telescopes in China - the Five-hundred-meter Aperture Spherical radio Telescope (FAST) and Tianlai 21-cm cosmology experiment (Tianlai). Facilitated by either the high sensitivity (FAST) or wide field of view (Tianlai) of these telescopes, more than a thousand 21-cm absorption systems can be discovered in a few years, representing orders of magnitude improvement over the cumulative discoveries in the past half a century.
文章类型Article
关键词Telescopes Surveys Cosmology: Observations
WOS标题词Science & Technology ; Physical Sciences
资助者National Natural Science Foundation of China(11573006 ; National Natural Science Foundation of China(11573006 ; China Postdoctoral Science Foundation(2015M570884 ; China Postdoctoral Science Foundation(2015M570884 ; National Science and Engineering Research Council of Canada ; National Science and Engineering Research Council of Canada ; FAST ; FAST ; CAS(114A11KYSB20160008) ; CAS(114A11KYSB20160008) ; CAS Interdisciplinary Innovation Team ; CAS Interdisciplinary Innovation Team ; 11528306) ; 11528306) ; 2016T90009) ; 2016T90009) ; National Natural Science Foundation of China(11573006 ; National Natural Science Foundation of China(11573006 ; China Postdoctoral Science Foundation(2015M570884 ; China Postdoctoral Science Foundation(2015M570884 ; National Science and Engineering Research Council of Canada ; National Science and Engineering Research Council of Canada ; FAST ; FAST ; CAS(114A11KYSB20160008) ; CAS(114A11KYSB20160008) ; CAS Interdisciplinary Innovation Team ; CAS Interdisciplinary Innovation Team ; 11528306) ; 11528306) ; 2016T90009) ; 2016T90009)
DOI10.1088/1674-4527/17/6/49
关键词[WOS]DECELERATION ; REDSHIFT
收录类别SCI
语种英语
资助者National Natural Science Foundation of China(11573006 ; National Natural Science Foundation of China(11573006 ; China Postdoctoral Science Foundation(2015M570884 ; China Postdoctoral Science Foundation(2015M570884 ; National Science and Engineering Research Council of Canada ; National Science and Engineering Research Council of Canada ; FAST ; FAST ; CAS(114A11KYSB20160008) ; CAS(114A11KYSB20160008) ; CAS Interdisciplinary Innovation Team ; CAS Interdisciplinary Innovation Team ; 11528306) ; 11528306) ; 2016T90009) ; 2016T90009) ; National Natural Science Foundation of China(11573006 ; National Natural Science Foundation of China(11573006 ; China Postdoctoral Science Foundation(2015M570884 ; China Postdoctoral Science Foundation(2015M570884 ; National Science and Engineering Research Council of Canada ; National Science and Engineering Research Council of Canada ; FAST ; FAST ; CAS(114A11KYSB20160008) ; CAS(114A11KYSB20160008) ; CAS Interdisciplinary Innovation Team ; CAS Interdisciplinary Innovation Team ; 11528306) ; 11528306) ; 2016T90009) ; 2016T90009)
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000408362700001
引用统计
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/20125
专题射电天文研究部
作者单位1.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China
2.Univ Toronto, Canadian Inst Theoret Astrophys, Toronto, ON M5S 3H8, Canada
3.Univ Toronto, Dunlap Inst Astron & Astrophys, Toronto, ON M5S 3H4, Canada
4.Canadian Inst Adv Res, Program Cosmol & Gravitat, Toronto, ON M5G 1Z8, Canada
5.Perimeter Inst Theoret Phys, Waterloo, ON N2L 2Y5, Canada
6.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China
7.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
8.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China
9.Chinese Acad Sci, Natl Astron Observ, Key Lab Computat Astrophys, Beijing 100012, Peoples R China
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Yu, Hao-Ran,Pen, Ue-Li,Zhang, Tong-Jie,et al. Blind search for 21-cm absorption systems using a new generation of Chinese radio telescopes[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2017,17(6).
APA Yu, Hao-Ran,Pen, Ue-Li,Zhang, Tong-Jie,Li, Di,&Chen, Xuelei.(2017).Blind search for 21-cm absorption systems using a new generation of Chinese radio telescopes.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,17(6).
MLA Yu, Hao-Ran,et al."Blind search for 21-cm absorption systems using a new generation of Chinese radio telescopes".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 17.6(2017).
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