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ALMA Imaging of the CO (7-6) Line Emission in the Submillimeter Galaxy LESS 073 at z=4.755*

文献类型：期刊论文

作者Zhao, Yinghe1,2,3; Lu, Nanyao4,5; Diaz-Santos, Tanio6,8; Gao, Yu9; Xu, C. Kevin4,5; Charmandaris, Vassilis7,10; Inann, Hanae11; Rigopoulou, Dimitra12; Sanders, David B.13; Huang, Jiasheng4,5
刊名ASTROPHYSICAL JOURNAL
出版日期2020-04-01
卷号892期号:2页码:8
ISSN号0004-637X
DOI10.3847/1538-4357/ab75eb
英文摘要In this paper we present our imaging observations on the CO.(7-6) line and its underlying continuum emission of the young submillimeter galaxy LESS.073 at redshift 4.755, using the Atacama Large Millimeter/submillimeter Array. At the achieved resolution of 1.. 2 ' 0.. 9 (8 x 6 kpc2), the CO.(7-6) emission is largely unresolved (with a deconvolved size of 1.. 1(.0.. 5) ' 0.. 9(. 0.. 8)), and the continuum emission is totally unresolved. The CO.(7 -6) line emission has an integrated flux of 0.86.+/-. 0.08.Jy.km s-1, and a line width of 343.+/-.40.km s-1. The continuum emission has a flux density of 0.51.mJy. By fitting the observed far-infrared spectral energy distribution (SED) of LESS.073 with a single-temperature modified blackbody function, we obtained a dust temperature Tdust = 57.6. 3.5 K, 60-100. mu m flux density ratio f60 f100 = 0.86. 0.08, and total infrared luminosity LIR = (5.8. 0.9) ' 10 L.12. The SED-fit-based f f 60 100 is consistent with those estimated from various line ratios as advocated by our earlier work, indicating that the proposed line-ratio-based method can be used to practically derive f60 f100 for high-z sources. The total molecular gas mass of LESS.073 is (3.3. 1.7) ' 1010 M., and the inferred gas depletion time is about 43.Myr.
WOS关键词SPECTRAL ENERGY-DISTRIBUTION ; DEEP-FIELD-SOUTH ; LABOCA SURVEY ; STAR-FORMATION ; MOLECULAR GAS ; Z=4.76
资助项目National Key R&D Program of China[2017YFA0402704] ; NSFC[11673057] ; NSFC[11673028] ; NSFC[11861131007] ; NSFC[11420101002] ; Chinese Academy of Sciences Key Research Program of Frontier Sciences[QYZDJSSW-SLH008] ; CONICYT ; National Aeronautics and Space Administration ; CASSACA
WOS研究方向Astronomy & Astrophysics
语种英语
出版者IOP PUBLISHING LTD
WOS记录号WOS:000525492100001
资助机构National Key R&D Program of China ; National Key R&D Program of China ; NSFC ; NSFC ; Chinese Academy of Sciences Key Research Program of Frontier Sciences ; Chinese Academy of Sciences Key Research Program of Frontier Sciences ; CONICYT ; CONICYT ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; CASSACA ; CASSACA ; National Key R&D Program of China ; National Key R&D Program of China ; NSFC ; NSFC ; Chinese Academy of Sciences Key Research Program of Frontier Sciences ; Chinese Academy of Sciences Key Research Program of Frontier Sciences ; CONICYT ; CONICYT ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; CASSACA ; CASSACA ; National Key R&D Program of China ; National Key R&D Program of China ; NSFC ; NSFC ; Chinese Academy of Sciences Key Research Program of Frontier Sciences ; Chinese Academy of Sciences Key Research Program of Frontier Sciences ; CONICYT ; CONICYT ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; CASSACA ; CASSACA ; National Key R&D Program of China ; National Key R&D Program of China ; NSFC ; NSFC ; Chinese Academy of Sciences Key Research Program of Frontier Sciences ; Chinese Academy of Sciences Key Research Program of Frontier Sciences ; CONICYT ; CONICYT ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; CASSACA ; CASSACA
源URL[http://ir.bao.ac.cn/handle/114a11/55838]  
专题中国科学院国家天文台
通讯作者Zhao, Yinghe
作者单位1.Chinese Acad Sci, Yunnan Observ, Kunming 650011, Yunnan, Peoples R China
2.Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Kunming 650011, Yunnan, Peoples R China
3.Chinese Acad Sci, Ctr Astron Megasci, 20A Datun Rd, Beijing 100012, Peoples R China
4.Chinese Acad Sci, Natl Astron Observ China, Beijing 100012, Peoples R China
5.Chinese Acad Sci, China Chile Joint Ctr Astron, Camino El Observ 1515, Santiago, Chile
6.Univ Diego Portales, Nucleo Astron, Fac Ingn, Av Ejercito Libertador 441, Santiago, Chile
7.Univ Crete, Dept Phys, GR-71003 Iraklion, Greece
8.Chinese Acad Sci, South Amer Ctr Astron, Natl Astron Observ, Beijing 100101, Peoples R China
9.Xiamen Univ, Dept Astron, Xiamen 361005, Fujian, Peoples R China
10.Natl Observ Athens, IAASARS, GR-15236 Penteli, Greece
推荐引用方式
GB/T 7714		 Zhao, Yinghe,Lu, Nanyao,Diaz-Santos, Tanio,et al. ALMA Imaging of the CO (7-6) Line Emission in the Submillimeter Galaxy LESS 073 at z=4.755*[J]. ASTROPHYSICAL JOURNAL,2020,892(2):8.
APA Zhao, Yinghe.,Lu, Nanyao.,Diaz-Santos, Tanio.,Gao, Yu.,Xu, C. Kevin.,...&Wang, Zhong.(2020).ALMA Imaging of the CO (7-6) Line Emission in the Submillimeter Galaxy LESS 073 at z=4.755*.ASTROPHYSICAL JOURNAL,892(2),8.
MLA Zhao, Yinghe,et al."ALMA Imaging of the CO (7-6) Line Emission in the Submillimeter Galaxy LESS 073 at z=4.755*".ASTROPHYSICAL JOURNAL 892.2(2020):8.

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