Institutional Repository of Radio Astronomy Research Laboratory
| lambda=2 mm spectroscopy observations toward the circumnuclear disk of NGC 1068 | |
Qiu, Jianjie1; Zhang, Jiangshui2; Zhang, Yong1,3; Jia, Lanwei2; Tang, Xindi4,5,6
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| 2020-02-21 | |
| Source Publication | ASTRONOMY & ASTROPHYSICS
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| ISSN | 0004-6361 |
| Volume | 634Pages:22 |
| Contribution Rank | 5 |
| Abstract | Aims. We investigate the physical and chemical conditions of molecular gas in the circumnuclear disk (CND) region of NGC 1068.Methods. We carried out a spectral line survey with the IRAM 30 m telescope toward the center of NGC 1068 and mainly focused on the 2 mm band with a frequency coverage of 160.7-168.6 GHz and 176.5-184.3 GHz.Results. Fifteen lines are detected in NGC 1068, eight of which are new detections for this galaxy. We derive the rotation temperatures and column densities of fourteen molecular species.Conclusions. Based on the [HCO+ (2-1)]/[HOC+ (2-1)] ratio, we obtain a high ionization degree in the CND of NGC 1068. It is found that HC3N is concentrated in the east knot, while (CCH)-C-13, CH3CN, SO, HOC+, CS, CH3CCH, and H2CO are concentrated in the west knot. Compared to the star-forming galaxies M 82 and NGC 253, the chemistry of NGC 1068 might be less strongly affected by the UV radiation field, and its kinetic temperature might be lower. |
| Keyword | ISM: molecules galaxies: ISM galaxies: individual: NGC 1068 galaxies: nuclei galaxies: active |
| DOI | 10.1051/0004-6361/201935800 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | DENSE MOLECULAR GAS ; HNC LINE EMISSION ; X-RAY ; ACTIVE NUCLEUS ; REACTIVE IONS ; GALAXIES ; CHEMISTRY ; HOC+ ; HCN ; ABUNDANCE |
| Funding Project | Natural Science Foundation of China (NSFC)[11973099] ; Natural Science Foundation of China (NSFC)[11590782] ; China Postdoctoral Science Foundation[2019M653144] ; Guangzhou Education Bureau[1201410593] ; Heaven Lake Hundred Talent Program of Xinjiang Uygur Autonomous Region of China |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000517308400001 |
| Publisher | EDP SCIENCES S A |
| Funding Organization | Natural Science Foundation of China (NSFC) ; China Postdoctoral Science Foundation ; Guangzhou Education Bureau ; Heaven Lake Hundred Talent Program of Xinjiang Uygur Autonomous Region of China |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/3390 |
| Collection | 射电天文研究室_恒星形成与演化研究团组 |
| Corresponding Author | Qiu, Jianjie |
| Affiliation | 1.Sun Yat Sen Univ, Sch Phys & Astron, Guangzhou 510275, Peoples R China 2.Guangzhou Univ, Ctr Astrophys, Guangzhou 510006, Peoples R China 3.Univ Hong Kong, Lab Space Res, Hong Kong, Peoples R China 4.Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany 5.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 6.Chinese Acad Sci, Key Lab Radio Astron, Beijing, Peoples R China |
| Recommended Citation GB/T 7714 | Qiu, Jianjie,Zhang, Jiangshui,Zhang, Yong,et al. lambda=2 mm spectroscopy observations toward the circumnuclear disk of NGC 1068[J]. ASTRONOMY & ASTROPHYSICS,2020,634:22. |
| APA | Qiu, Jianjie,Zhang, Jiangshui,Zhang, Yong,Jia, Lanwei,&Tang, Xindi.(2020).lambda=2 mm spectroscopy observations toward the circumnuclear disk of NGC 1068.ASTRONOMY & ASTROPHYSICS,634,22. |
| MLA | Qiu, Jianjie,et al."lambda=2 mm spectroscopy observations toward the circumnuclear disk of NGC 1068".ASTRONOMY & ASTROPHYSICS 634(2020):22. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Qiu-2020-lambda=2 mm（1200KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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