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 YH(赵应和)1,2,3; 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 |
DOI | 10.3847/1538-4357/ab75eb |
产权排序 | 第1完成单位 |
文献子类 | Article |
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. |
学科主题 | 天文学 ; 星系与宇宙学 |
URL标识 | 查看原文 |
出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
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[2017YFA0402704] ; NSFC[11673057, 11673028, 11861131007, 11420101002] ; Chinese Academy of Sciences Key Research Program of Frontier Sciences[QYZDJSSW-SLH008] ; CONICYT ; National Aeronautics and Space Administration ; CASSACA |
源URL | [http://ir.ynao.ac.cn/handle/114a53/23035] |
专题 | 云南天文台_丽江天文观测站(南方基地) 云南天文台_中国科学院天体结构与演化重点实验室 |
通讯作者 | Zhao YH(赵应和) |
作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, People's Republic of China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, People's Republic of China 3.Center for Astronomical Mega-Science, CAS, 20A Datun Road, Chaoyang District, Beijing 100012, People's Republic of China 4.National Astronomical Observatories of China, Chinese Academy of Sciences, Beijing 100012, People's Republic of China 5.China-Chile Joint Center for Astronomy, Chinese Academy of Sciences, Camino El Observatorio, 1515 Las Condes, Santiago, Chile 6.Núcleo de Astronomía de la Facultad de Ingeniería, Universidad Diego Portales, Av. Ejército Libertador 441, Santiago, Chile 7.Department of Physics, University of Crete, GR-71003 Heraklion, Greece 8.Chinese Academy of Sciences, South America Center for Astronomy, National Astronomical Observatories, CAS, Beijing 100101, People's Republic of China 9.Chinese Academy of Sciences, South America Center for Astronomy, National Astronomical Observatories, CAS, Beijing 100101, People's Republic of China 10.IAASARS, National Observatory of Athens, GR-15236, Penteli, Greece |
推荐引用方式 GB/T 7714 | Zhao YH,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 YH.,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 YH,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. |
入库方式: OAI收割
来源:云南天文台
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