NAOC Open IR
Pre-selection of the candidate fields for deep imaging of the epoch of reionization with SKA1-low
Zheng, Qian1; Wu, Xiang-Ping1,2; Guo, Quan1; Johnston-Hollitt, Melanie3,4; Shan, Huanyuan1,5; Duchesne, Stefan W.4; Li, Weitian6
2020-12-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume499Issue:3Pages:3434-3444
AbstractThe Square Kilometre Array (SKA) will be the first low-frequency instrument with the capability to directly image the structures of the epoch of reionization (EoR). Indeed, deep imaging of the EoR over five targeted fields of 20 sq deg each has been selected as the highest priority science objective for SKA1. Aiming at preparing for this highly challenging observation, we perform an extensive pre-selection of the 'quietest' and 'cleanest' candidate fields in the southern sky to be suited for deep imaging of the EoR using existing catalogues and observations over a broad frequency range. The candidate fields should meet a number of strict criteria to avoid contaminations from foreground structures and sources. The candidate fields should also exhibit both the lowest average surface brightness and smallest variance to ensure uniformity and high-quality deep imaging over the fields. Our selection eventually yields a sample of 7 'ideal' fields of 20 sq deg in the southern sky that could be targeted for deep imaging of the EoR. Finally, these selected fields are convolved with the synthesized beam of SKA 1-low stations to ensure that the effect of sidelobes from the far-field bright sources is also weak.
Keywordinstrumentation: interferometers methods: observational catalogues dark ages, reionization, first stars cosmology: observations radio continuum: general
Funding OrganizationNational Key Research and Development Program of China ; National Key Research and Development Program of China ; Key Projects of Frontier Science of Chinese Academy of Sciences ; Key Projects of Frontier Science of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Committee of Science and Technology ; Shanghai Committee of Science and Technology ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Australian Government Research Training Programme scholarship ; Australian Government Research Training Programme scholarship ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Key Projects of Frontier Science of Chinese Academy of Sciences ; Key Projects of Frontier Science of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Committee of Science and Technology ; Shanghai Committee of Science and Technology ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Australian Government Research Training Programme scholarship ; Australian Government Research Training Programme scholarship ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Key Projects of Frontier Science of Chinese Academy of Sciences ; Key Projects of Frontier Science of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Committee of Science and Technology ; Shanghai Committee of Science and Technology ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Australian Government Research Training Programme scholarship ; Australian Government Research Training Programme scholarship ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Key Projects of Frontier Science of Chinese Academy of Sciences ; Key Projects of Frontier Science of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Committee of Science and Technology ; Shanghai Committee of Science and Technology ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Australian Government Research Training Programme scholarship ; Australian Government Research Training Programme scholarship
DOI10.1093/mnras/staa3011
WOS KeywordGALACTIC RADIO-EMISSION ; 10 MHZ ; LIMIT ; MODEL
Language英语
Funding ProjectNational Key Research and Development Program of China[2018YFA0404601] ; Key Projects of Frontier Science of Chinese Academy of Sciences[QYZDY-SSW-SLH022] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB23000000] ; Shanghai Pujiang Program[19PJ1410700] ; National Natural Science Foundation of China[11973070] ; Shanghai Committee of Science and Technology[19ZR1466600] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences[ZDBS-LY-7013] ; Australian Government Research Training Programme scholarship
Funding OrganizationNational Key Research and Development Program of China ; National Key Research and Development Program of China ; Key Projects of Frontier Science of Chinese Academy of Sciences ; Key Projects of Frontier Science of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Committee of Science and Technology ; Shanghai Committee of Science and Technology ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Australian Government Research Training Programme scholarship ; Australian Government Research Training Programme scholarship ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Key Projects of Frontier Science of Chinese Academy of Sciences ; Key Projects of Frontier Science of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Committee of Science and Technology ; Shanghai Committee of Science and Technology ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Australian Government Research Training Programme scholarship ; Australian Government Research Training Programme scholarship ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Key Projects of Frontier Science of Chinese Academy of Sciences ; Key Projects of Frontier Science of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Committee of Science and Technology ; Shanghai Committee of Science and Technology ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Australian Government Research Training Programme scholarship ; Australian Government Research Training Programme scholarship ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Key Projects of Frontier Science of Chinese Academy of Sciences ; Key Projects of Frontier Science of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Committee of Science and Technology ; Shanghai Committee of Science and Technology ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Australian Government Research Training Programme scholarship ; Australian Government Research Training Programme scholarship
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000593116100027
PublisherOXFORD UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/80160
Collection中国科学院国家天文台
Corresponding AuthorZheng, Qian; Wu, Xiang-Ping; Guo, Quan
Affiliation1.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China
3.Curtin Inst Computat, GPO Box U1987, Perth, WA 6845, Australia
4.Curtin Univ, Int Ctr Radio Astron Res ICRAR, Bentley, WA, Australia
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
6.Shanghai Jiao Tong Univ, Sch Phys & Astron, 800 Dongchuan Rd, Shanghai 200240, Peoples R China
Recommended Citation
GB/T 7714
Zheng, Qian,Wu, Xiang-Ping,Guo, Quan,et al. Pre-selection of the candidate fields for deep imaging of the epoch of reionization with SKA1-low[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2020,499(3):3434-3444.
APA Zheng, Qian.,Wu, Xiang-Ping.,Guo, Quan.,Johnston-Hollitt, Melanie.,Shan, Huanyuan.,...&Li, Weitian.(2020).Pre-selection of the candidate fields for deep imaging of the epoch of reionization with SKA1-low.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,499(3),3434-3444.
MLA Zheng, Qian,et al."Pre-selection of the candidate fields for deep imaging of the epoch of reionization with SKA1-low".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 499.3(2020):3434-3444.
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