PMO OpenIR  > 分子云与恒星形成研究团组
ISOTOPOLOGUES OF DENSE GAS TRACERS IN NGC 1068
Wang, Junzhi1,2; Zhang, Zhi-Yu3,4; Qiu, Jianjie1; Shi, Yong5; Zhang, Jiangshui6; Fang, Min4,7
2014-11-20
Source PublicationASTROPHYSICAL JOURNAL
Volume796Issue:1
AbstractWe 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.
KeywordGalaxies: Active Galaxies: Individual (Ngc 1068) Galaxies: Ism
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1088/0004-637X/796/1/57
WOS KeywordNUCLEAR STARBURST ENVIRONMENT ; MOLECULAR LINE SURVEY ; INFRARED GALAXIES ; NEARBY GALAXIES ; STAR-FORMATION ; (CO)-C-13 ; EMISSION ; MERGERS ; RATIO ; NUCLEOSYNTHESIS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000344550300057
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/15644
Collection分子云与恒星形成研究团组
Affiliation1.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
Recommended Citation
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).
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