中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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
DOI10.3847/1538-4357/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

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。