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Neutral Carbon Emission in Luminous Infrared Galaxies: The [C i] Lines as Total Molecular Gas Tracers??Based on Herschel observations. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.
Jiao,Qian1,2,3; Zhao,Yinghe4,5,6,7; Zhu,Ming1,2; Lu,Nanyao1,8; Gao,Yu7,9; Zhang,Zhi-Yu10,11
2017-05-09
Source PublicationThe Astrophysical Journal Letters
ISSN2041-8205
Volume840Issue:2
AbstractAbstract We present a statistical study of the [C i] (3P1 3P0), [C i] (3P2 3P1) 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 correlates almost linearly with both and , suggesting that [C i] lines can trace total molecular gas mass, at least for (U)LIRGs. We also investigate the dependence of / , / , and / on the far-infrared color of 60-to-100 μm, 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-H2 mass conversion factors for our sample. The resulting masses using these [C i]-based conversion factors roughly agree with those derived from and CO-to-H2 conversion factor.
Keywordgalaxies: starburst ISM: atoms ISM: molecules submillimeter: galaxies
DOI10.3847/2041-8213/aa6f0f
Language英语
WOS IDIOP:2041-8205-840-2-aa6f0f
PublisherThe American Astronomical Society
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/23776
Collection中国科学院紫金山天文台
Affiliation1.National Astronomical Observatories, Chinese Academy of Sciences (CAS), Beijing 100012, China; mz@nao.cas.cn
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; zhaoyinghe@ynao.ac.cn
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; nanyao.lu@gmail.com
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 Strasse 2, D-85748 Garching, Munich, Germany
Recommended Citation
GB/T 7714
Jiao,Qian,Zhao,Yinghe,Zhu,Ming,et al. Neutral Carbon Emission in Luminous Infrared Galaxies: The [C i] Lines as Total Molecular Gas Tracers??Based on Herschel observations. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.[J]. The Astrophysical Journal Letters,2017,840(2).
APA Jiao,Qian,Zhao,Yinghe,Zhu,Ming,Lu,Nanyao,Gao,Yu,&Zhang,Zhi-Yu.(2017).Neutral Carbon Emission in Luminous Infrared Galaxies: The [C i] Lines as Total Molecular Gas Tracers??Based on Herschel observations. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA..The Astrophysical Journal Letters,840(2).
MLA Jiao,Qian,et al."Neutral Carbon Emission in Luminous Infrared Galaxies: The [C i] Lines as Total Molecular Gas Tracers??Based on Herschel observations. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.".The Astrophysical Journal Letters 840.2(2017).
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