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Deep millimeter spectroscopy observations toward NGC 1068
Qiu, Jianjie1,2; Wang, Junzhi2,3; Shi, Yong1,4; Zhang, Jiangshui5; Fang, Min6; Li, Fei2,7
2018-05-15
Source PublicationASTRONOMY & ASTROPHYSICS
ISSN1432-0746
Volume613Pages:7
Corresponding AuthorQiu, Jianjie(qiujianjie2007@126.com)
AbstractAims. We aim for a better understanding of gas properties in the circum-nuclear disk (CND) region of the nearby gas-rich Seyfert 2 galaxy NGC 1068. We focus on line identification and the basic physical parameters estimation of molecular gas in the CND region. Methods. We used the IRAM 30 m telescope to conduct deep millimeter spectroscopy observations toward the center of NGC 1068. Results. Thirty-two lines were detected in this galaxy, 15 lines of wich were detected for the first time. With a sensitivity better by about a factor of 4 than observations in the literature for this source at 3 mm band, we detected several weak lines for the first time in this source, such as lines from CH3CCH, CH3OCH3, and (HCO+)-O-18. Column densities of these molecules were estimated based on line emissions. Some marginal detections in the literature, such as (HNC)-C-13 (1-0), were confirmed. CH3OCH3 was detected for the first time in external galaxies. Lines from several carbon chain molecules and shock-related molecules were also detected in this source.
KeywordISM: molecules galaxies: ISM galaxies: individual: NGC1068 galaxies: nuclei galaxies: active
DOI10.1051/0004-6361/201731035
WOS KeywordLUMINOUS INFRARED GALAXIES ; MOLECULAR GAS ; LINE SURVEY ; ACTIVE GALAXIES ; BRIGHT GALAXIES ; NEARBY GALAXIES ; NGC-1068 ; RESOLUTION ; CHEMISTRY ; EMISSION
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000432211500003
PublisherEDP SCIENCES S A
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22022
Collection中国科学院紫金山天文台
Corresponding AuthorQiu, Jianjie
Affiliation1.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Jiangsu, Peoples R China
2.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
3.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China
4.Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210093, Jiangsu, Peoples R China
5.GuangZhou Univ, Ctr Astrophys, Guangzhou 510006, Guangdong, Peoples R China
6.Univ Arizona, Dept Astron, 933 North Cherry Ave, Tucson, AZ 85721 USA
7.Univ Chinese Acad Sci, 19A Yuquanlu, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Qiu, Jianjie,Wang, Junzhi,Shi, Yong,et al. Deep millimeter spectroscopy observations toward NGC 1068[J]. ASTRONOMY & ASTROPHYSICS,2018,613:7.
APA Qiu, Jianjie,Wang, Junzhi,Shi, Yong,Zhang, Jiangshui,Fang, Min,&Li, Fei.(2018).Deep millimeter spectroscopy observations toward NGC 1068.ASTRONOMY & ASTROPHYSICS,613,7.
MLA Qiu, Jianjie,et al."Deep millimeter spectroscopy observations toward NGC 1068".ASTRONOMY & ASTROPHYSICS 613(2018):7.
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