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Neutral Carbon Emission in Luminous Infrared Galaxies: The [CI] Lines as Total Molecular Gas Tracers
Jiao, Qian1,2,3; Zhao YH(赵应和)4,5,6,7; Zhu, Ming1,2; Lu, Nanyao1,8; Gao, Yu7,9; Zhang, Zhi-Yu10,11
发表期刊ASTROPHYSICAL JOURNAL LETTERS
2017-05-10
卷号840期号:2
DOI10.3847/2041-8213/aa6f0f
产权排序第4完成单位
收录类别SCI
关键词Galaxies: Starburst Ism: Atoms Ism: Molecules Submillimeter: Galaxies
摘要

We present a statistical study of the [C I] (P-3(1) (R) P-3(0)), [C I] (P-3(2) (R) P-3(1)) lines (hereafter [C I] (1-0) and [C I] (2-1), respectively) and the CO(1-0) line for a sample of (ultra-) luminous infrared galaxies ((U) LIRGs). We explore the correlations between the luminosities of CO(1-0) and [C I] lines, and find that L'(CO(1-0)) correlates almost linearly with both L'[C I] (1-0) and L'[C I] (2-1), suggesting that [C I] lines can trace total molecular gas mass, at least for (U) LIRGs. We also investigate the dependence of L'([C I] (1-0))/L'(CO (1-0)), L'([C I] (2-1))/L'(CO (1-0)), and L'([C I] (2-1))/L'([C I] (1-0)) on the far-infrared color of 60-to-100 mu m, and find non-correlation, a weak correlation, and a modest correlation, respectively. Under the assumption that these two carbon transitions are optically thin, we further calculate the [C I] line excitation temperatures, atomic carbon masses, and mean [C I] line flux-to-H-2 mass conversion factors for our sample. The resulting H-2 masses using these [C I]-based conversion factors roughly agree with those derived from L'(CO (1-0)) and CO-to-H-2 conversion factor.

项目资助者Natural Science Foundation of China(11673057, U1531246, 11420101002, 11673028, 11311130491) ; CAS Key Research Program of Frontier Sciences ; ERC in the form of the Advanced Investigator Programme(321302)
语种英语
学科领域天文学
学科门类理学 ; 理学::天文学
文章类型Article
出版者IOP PUBLISHING LTD
ISSN2041-8205
URL查看原文
WOS记录号WOS:000404545200002
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]High-redshift Galaxies ; Atomic Carbon ; Physical Conditions ; Co ; Dust ; Astronomy ; Sample ; Model
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/10146
专题丽江天文观测站(南方基地)
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.National Astronomical Observatories, Chinese Academy of Sciences (CAS), Beijing 100012, China
2.Key Laboratory of Radio Astronomy, CAS, Beijing 100012, China
3.University of Chinese Academy of Sciences, Beijing 100012, China
4.Yunnan Observatories, CAS, Kunming 650011, China
5.Key Laboratory for the Structure and Evolution of Celestial Objects, CAS, Kunming 650011, China
6.Center for Astronomical Mega-Science, CAS, 20A Datun Road, Chaoyang District, Beijing 100012, China
7.Purple Mountain Observatory, CAS, Nanjing 210008, China
8.China-Chile Joint Center for Astronomy (CCJCA), Camino El Observatorio 1515, Las Condes, Santiago, Chile
9.Key Laboratory of Radio Astronomy, CAS, Nanjing 210008, China
10.Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ, UK
11.ESO, Karl Schwarzschild Str 2, D-85748 Munich, Germany
通讯作者单位中国科学院云南天文台
推荐引用方式
GB/T 7714
Jiao, Qian,Zhao YH,Zhu, Ming,et al. Neutral Carbon Emission in Luminous Infrared Galaxies: The [CI] Lines as Total Molecular Gas Tracers[J]. ASTROPHYSICAL JOURNAL LETTERS,2017,840(2).
APA Jiao, Qian,Zhao YH,Zhu, Ming,Lu, Nanyao,Gao, Yu,&Zhang, Zhi-Yu.(2017).Neutral Carbon Emission in Luminous Infrared Galaxies: The [CI] Lines as Total Molecular Gas Tracers.ASTROPHYSICAL JOURNAL LETTERS,840(2).
MLA Jiao, Qian,et al."Neutral Carbon Emission in Luminous Infrared Galaxies: The [CI] Lines as Total Molecular Gas Tracers".ASTROPHYSICAL JOURNAL LETTERS 840.2(2017).
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