ISOTOPOLOGUES OF DENSE GAS TRACERS IN NGC 1068

CORC > 紫金山天文台 > 中国科学院紫金山天文台 > 分子云与恒星形成研究团组

	ISOTOPOLOGUES OF DENSE GAS TRACERS IN NGC 1068
	Wang, Junzhi 1,2; Zhang, Zhi-Yu 3,4; Qiu, Jianjie 1; Shi, Yong 5; Zhang, Jiangshui 6; Fang, Min4,7
刊名	ASTROPHYSICAL JOURNAL
	2014-11-20
卷号	796 期号:1
关键词	galaxies: active galaxies: individual (NGC 1068) galaxies: ISM
英文摘要	We present observations of isotopic lines of dense gas tracers toward the nuclear region of nearby Seyfert 2 galaxy NGC 1068 with the IRAM 30 m telescope and the Atacama Pathfinder Experiment (APEX) 12 m telescope. We detected four isotopic lines ((HCN)-C-13 1-0, (HCO+)-C-13 1-0, (HNC)-C-13 1-0, and (HCO+)-O-18 1-0) at the 3 mm band with the IRAM 30m telescope and obtained upper limits of other lines. We calculated optical depths of dense gas tracers with the detected isotopic lines of HCN 1-0, HCO+ 1-0, and HNC 1-0. We find that the N-14/N-15 abundance ratio is greater than 420 if we adopt the upper limit of (HCN)-N-15(1-0) emission. Combining this with fluxes of 1-0 lines from IRAM 30 m observations and the upper limit of 3-2 lines from APEX 12 m observations, we also estimated the excitation condition of molecular gas in the nuclear region of NGC 1068, which is less dense than that in the extreme starburst regions of galaxies.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	NUCLEAR STARBURST ENVIRONMENT ; MOLECULAR LINE SURVEY ; INFRARED GALAXIES ; NEARBY GALAXIES ; STAR-FORMATION ; (CO)-C-13 ; EMISSION ; MERGERS ; RATIO ; NUCLEOSYNTHESIS
收录类别	SCI
语种	英语
WOS记录号	WOS:000344550300057
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/15623]
专题	紫金山天文台_分子云与恒星形成研究团组
作者单位	1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China 3.Univ Edinburgh, Royal Observ, Inst Astron, Edinburgh EH9 3HJ, Midlothian, Scotland 4.ESO, D-85748 Garching, Germany 5.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Jiangsu, Peoples R China 6.GuangZhou Univ, Ctr Astrophys, Guangzhou 510006, Guangdong, Peoples R China 7.Univ Autonoma Madrid, Dept Fis Teor, E-28049 Madrid, Spain
推荐引用方式 GB/T 7714	Wang, Junzhi,Zhang, Zhi-Yu,Qiu, Jianjie,et al. ISOTOPOLOGUES OF DENSE GAS TRACERS IN NGC 1068[J]. ASTROPHYSICAL JOURNAL,2014,796(1).
APA	Wang, Junzhi,Zhang, Zhi-Yu,Qiu, Jianjie,Shi, Yong,Zhang, Jiangshui,&Fang, Min.(2014).ISOTOPOLOGUES OF DENSE GAS TRACERS IN NGC 1068.ASTROPHYSICAL JOURNAL,796(1).
MLA	Wang, Junzhi,et al."ISOTOPOLOGUES OF DENSE GAS TRACERS IN NGC 1068".ASTROPHYSICAL JOURNAL 796.1(2014).