Neutral Carbon Emission in Luminous Infrared Galaxies: The [CI] Lines as Total Molecular Gas Tracers

doi:10.3847/2041-8213/aa6f0f

CORC > 云南天文台 > 中国科学院云南天文台 > 丽江天文观测站（南方基地）

	Neutral Carbon Emission in Luminous Infrared Galaxies: The [CI] Lines as Total Molecular Gas Tracers
	Jiao, Qian 1,2,3; Zhao YH(赵应和)4,5,6,7 ; Zhu, Ming 1,2; Lu, Nanyao 1,8; Gao, Yu 7,9; Zhang, Zhi-Yu 10,11; Zhao, Yinghe(Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China)
刊名	ASTROPHYSICAL JOURNAL LETTERS
	2017-05-10
卷号	840 期号:2
关键词	Galaxies: Starburst Ism: Atoms Ism: Molecules Submillimeter: Galaxies
ISSN号	2041-8205
DOI	10.3847/2041-8213/aa6f0f
产权排序	第4完成单位
文献子类	Article
英文摘要	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.
学科主题	天文学
URL标识	查看原文
WOS关键词	HIGH-REDSHIFT GALAXIES ; ATOMIC CARBON ; PHYSICAL CONDITIONS ; CO ; DUST ; ASTRONOMY ; SAMPLE ; MODEL
WOS研究方向	Astronomy & Astrophysics
语种	英语
WOS记录号	WOS:000404545200002
资助机构	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)
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/10146]
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, Yinghe(Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China)
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
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.,...&Zhao, Yinghe.(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).