ALMA [N II] 205 mu m Imaging Spectroscopy of the Lensed Submillimeter Galaxy ID 141 at Redshift 4.24
文献类型:期刊论文
作者 | Cheng, Cheng2,3,4; Cao, Xiaoyue5,6; Lu, Nanyao2,3; Li, Ran5,6; Yang, Chentao7; Rigopoulou, Dimitra1; Charmandaris, Vassilis8,9; Gao, Yu10,11; Xu, Cong Kevin2,3; van der Werf, Paul12 |
刊名 | The Astrophysical Journal |
出版日期 | 2020-07-01 |
卷号 | 898期号:1页码:9 |
ISSN号 | 0004-637X |
关键词 | Far infrared interferometry Strong gravitational lensing Infrared galaxies High-redshift galaxies Submillimeter astronomy Starburst galaxies Dust continuum emission |
DOI | 10.3847/1538-4357/ab980b |
产权排序 | 第15完成单位 |
文献子类 | Article |
英文摘要 | We present an Atacama Large Millimeter/submillimeter Array observation of the Submillimeter galaxy ID 141 at z?=?4.24 in the [N ii] 205 μm line (hereafter [N ii] ) and the underlying continuum at (rest-frame) 197.6 μm. Benefiting from lensing magnification by a galaxy pair at z?=?0.595, ID 141 is one of the brightest SMGs. At the angular resolutions of –1.″5 (1″ ~6.9 kpc), our observation clearly separates and moderately resolves the two lensed images in both continuum and line emission at a signal-to-noise ratio >5. Our continuum-based lensing model implies an averaged amplification factor of ~5.8 and reveals that the delensed continuum image has a Sérsic index and Sérsic radius of ~0.″18 (~1.24 kpc). Furthermore, the reconstructed [N ii] velocity field in the source plane is dominated by a rotation component with a maximum velocity of ~300 km s?1 at large radii, indicating a dark matter halo mass of ~10 . This, together with the reconstructed velocity dispersion field being smooth and modest in value (<100 km s?1) over much of the outer parts of the galaxy, favors the interpretation of ID 141 being a disk galaxy dynamically supported by rotation. The observed [N ii] /CO (7?6) and [N ii] /[C ii] 158 μm line-luminosity ratios, which are consistent with the corresponding line ratio versus far-infrared color correlation from local luminous infrared galaxies, imply a delensed star formation rate of (1.8 yr?1 and provide an independent estimate of the size of the star-forming region kpc in radius. |
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 | STAR-FORMING GALAXIES ; PHOTODISSOCIATION REGIONS ; RESOLVED SPECTROSCOPY ; BILLION YEARS ; DARK-MATTER ; HERSCHEL ; EMISSION ; LIGHT ; DISK ; MASS |
资助项目 | National Key R&D Program of China[2017YFA0402704] ; NSFC[11773032] ; NSFC[11673028] ; NSFC[11673057] ; NSFC[11933003] ; Chinese Academy of Sciences (CAS) ; ESO Fellowship ; University of Florida ; UKRI[ST/S000488/1] ; National Natural Science Foundation of China[11803044] ; National Natural Science Foundation of China[11861131007] ; National Natural Science Foundation of China[11420101002] ; Young Researcher Grant of National Astronomical Observatories, Chinese Academy of Science ; National Key Basic Research and Development Program of China[2017YFA0402700] ; Chinese the Academy of Sciences Key Research Program of Frontier Sciences[QYZDJSSW-SLH008] ; CASSACA ; CONICYT fund CAS-CONICYT ; Nebula Talent Program of NAOC |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP PUBLISHING LTD |
WOS记录号 | WOS:000553459300001 |
资助机构 | National Key R&D Program of China[2017YFA0402704] ; NSFC[11773032, 11673028, 11673057, 11933003] ; Chinese Academy of Sciences (CAS) ; ESO Fellowship ; University of Florida ; UKRI[ST/S000488/1] ; National Natural Science Foundation of China[11803044, 11861131007, 11420101002] ; Young Researcher Grant of National Astronomical Observatories, Chinese Academy of Science ; National Key Basic Research and Development Program of China[2017YFA0402700] ; Chinese the Academy of Sciences Key Research Program of Frontier Sciences[QYZDJSSW-SLH008] ; CASSACA ; CONICYT fund CAS-CONICYT ; Nebula Talent Program of NAOC |
源URL | [http://ir.ynao.ac.cn/handle/114a53/23583] |
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 | Cheng, Cheng |
作者单位 | 1.Astrophysics Department, University of Oxford, Oxford OX1 3RH, UK 2.Chinese Academy of Sciences−South American Center for Astronomy (CASSACA), National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100101, People's Republic of China 3.China-Chile Joint Center for Astronomy, Camino El Observatorio 1515, Las Condes, Santiago, Chile 4.Instituto de Física y Astronomía, Universidad de Valparaíso, Avda. Gran Breta?a 1111, Valparaíso, Chile 5.National Astronomical Observatories, Chinese Academy of Sciences (NAOC), 20A Datun Road, Chaoyang District, Beijing 100012, People’s Republic of China 6.School of Astronomy and Space Science University of Chinese Academy of Science 19 A Yuquan Rd, Shijingshan District, Beijing, 100049, People’s Republic of China 7.European Southern Observatory, Alonso de Córdova 3107, Casilla 19001, Vitacura, Santiago, Chile 8.Department of Physics, University of Crete, GR-71003 Heraklion, Greece 9.Institute of Astrophysics, FORTH, GR-71110 Heraklion, Greece 10.Department of Astronomy, Xiamen University, Xiamen, Fujian 361005, People’s Republic of China |
推荐引用方式 GB/T 7714 | Cheng, Cheng,Cao, Xiaoyue,Lu, Nanyao,et al. ALMA [N II] 205 mu m Imaging Spectroscopy of the Lensed Submillimeter Galaxy ID 141 at Redshift 4.24[J]. The Astrophysical Journal,2020,898(1):9. |
APA | Cheng, Cheng.,Cao, Xiaoyue.,Lu, Nanyao.,Li, Ran.,Yang, Chentao.,...&Zhu,Lei.(2020).ALMA [N II] 205 mu m Imaging Spectroscopy of the Lensed Submillimeter Galaxy ID 141 at Redshift 4.24.The Astrophysical Journal,898(1),9. |
MLA | Cheng, Cheng,et al."ALMA [N II] 205 mu m Imaging Spectroscopy of the Lensed Submillimeter Galaxy ID 141 at Redshift 4.24".The Astrophysical Journal 898.1(2020):9. |
入库方式: OAI收割
来源:云南天文台
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