The HASHTAG project I. A survey of CO(3-2) emission from the star forming disc of M31
文献类型：期刊论文
| 作者 | Li, Zongnan1,2; Li, Zhiyuan1,2; Smith, Matthew W. L.3; Wilson, Christine D.4; Gao, Yu5,6; Eales, Stephen A.3; Ao, Yiping5,6; Bureau, Martin7,8,9; Chung, Aeree9; Davis, Timothy A.3 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2020-02-01 |
| 卷号 | 492期号:1页码:195-209 |
| ISSN号 | 0035-8711 |
| 关键词 | ISM: molecules galaxies: individual (M 31) galaxies: ISM |
| DOI | 10.1093/mnras/stz3409 |
| 英文摘要 | We present a CO(3-2) survey of selected regions in the M31 disc as part of the JCMT large programme, HARP and SCUBA-2 High-Resolution Terahertz Andromeda Galaxy Survey (HASHTAG). The 12 CO(3-2) fields in this survey cover a total area of 60 arcmin(2), spanning a deprojected radial range of 2-14 kpc across the M31 disc. Combining these observations with existing IRAM 30m CO(1-0) observations and JCMT CO(3-2) maps of the nuclear region of M31, as well as dust temperature and star formation rate surface density maps, we are able to explore the radial distribution of the CO(3-2)/CO(1-0) integrated intensity ratio (R-31) and its relationship with dust temperature and star formation. We find that the value of R-31 between 2 and 9 kpc galactocentric radius is 0.14, significantly lower than what is seen in the nuclear ring at 1 kpc (R-31 similar to 0.8), only to rise again to 0.27 for the fields centred on the 10 kpc star forming ring. We also found that R-31 is positively correlated with dust temperature, with Spearman's rank correlation coefficient rho = 0.55. The correlation between star formation rate surface density and CO(3-2) intensity is much stronger than with CO(1-0), with rho = 0.54 compared to -0.05, suggesting that the CO(3-2) line traces warmer and denser star forming gas better. We also find that R-31 correlates well with star formation rate surface density, with rho = 0.69. |
| WOS关键词 | MASSIVE MOLECULAR CLOUDS ; NEARBY GALAXIES ; FORMATION LAW ; CO EMISSION ; INNER DISK ; J=3-2 SURVEY ; GAS ; DUST ; DENSITY ; TEMPERATURE |
| 资助项目 | National Key Research and Development Program of China[2017YFA0402700] ; National Key Research and Development Program of China[2017YFA0402703] ; National Key Research and Development Program of China[2017YFA0402704] ; Science and Technology Facilities Council of the United Kingdom ; JCMT project[M17BL005] ; National Natural Science Foundation of China[11873028] ; National Natural Science Foundation of China[11861131007] ; National Natural Science Foundation of China[11420101002] ; National Natural Science Foundation of China[11873086] ; National Natural Science Foundation of China[U1631237] ; Chinese Academy of Sciences Key Research Program of Frontier Sciences[QYZDJ-SSW-SLH008] ; Natural Science and Engineering Research Council of Canada ; Canada Research Chairs program ; Chinese Academy of Sciences (CAS) ; National Commission for Scientific and Technological Research of Chile (CONICYT) through a CAS-CONICYT Joint Postdoctoral Fellowship ; Ministry of Science and Technology of Taiwan[MOST107-2119-M-001-031-MY3] ; Academia Sinica[AS-IA-106-M03] ; National Science Centre, Poland through the SONATA BIS grant[2018/30/E/ST9/00208] ; Yunnan Province of China[2017HC018] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | OXFORD UNIV PRESS |
| WOS记录号 | WOS:000512329900013 |
| 资助机构 | National Key Research and Development Program of China ; National Key Research and Development Program of China ; Science and Technology Facilities Council of the United Kingdom ; Science and Technology Facilities Council of the United Kingdom ; JCMT project ; JCMT project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences Key Research Program of Frontier Sciences ; Chinese Academy of Sciences Key Research Program of Frontier Sciences ; Natural Science and Engineering Research Council of Canada ; Natural Science and Engineering Research Council of Canada ; Canada Research Chairs program ; Canada Research Chairs program ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Commission for Scientific and Technological Research of Chile (CONICYT) through a CAS-CONICYT Joint Postdoctoral Fellowship ; National Commission for Scientific and Technological Research of Chile (CONICYT) through a CAS-CONICYT Joint Postdoctoral Fellowship ; Ministry of Science and Technology of Taiwan ; Ministry of Science and Technology of Taiwan ; Academia Sinica ; Academia Sinica ; National Science Centre, Poland through the SONATA BIS grant ; National Science Centre, Poland through the SONATA BIS grant ; Yunnan Province of China ; Yunnan Province of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Science and Technology Facilities Council of the United Kingdom ; Science and Technology Facilities Council of the United Kingdom ; JCMT project ; JCMT project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences Key Research Program of Frontier Sciences ; Chinese Academy of Sciences Key Research Program of Frontier Sciences ; Natural Science and Engineering Research Council of Canada ; Natural Science and Engineering Research Council of Canada ; Canada Research Chairs program ; Canada Research Chairs program ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Commission for Scientific and Technological Research of Chile (CONICYT) through a CAS-CONICYT Joint Postdoctoral Fellowship ; National Commission for Scientific and Technological Research of Chile (CONICYT) through a CAS-CONICYT Joint Postdoctoral Fellowship ; Ministry of Science and Technology of Taiwan ; Ministry of Science and Technology of Taiwan ; Academia Sinica ; Academia Sinica ; National Science Centre, Poland through the SONATA BIS grant ; National Science Centre, Poland through the SONATA BIS grant ; Yunnan Province of China ; Yunnan Province of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Science and Technology Facilities Council of the United Kingdom ; Science and Technology Facilities Council of the United Kingdom ; JCMT project ; JCMT project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences Key Research Program of Frontier Sciences ; Chinese Academy of Sciences Key Research Program of Frontier Sciences ; Natural Science and Engineering Research Council of Canada ; Natural Science and Engineering Research Council of Canada ; Canada Research Chairs program ; Canada Research Chairs program ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Commission for Scientific and Technological Research of Chile (CONICYT) through a CAS-CONICYT Joint Postdoctoral Fellowship ; National Commission for Scientific and Technological Research of Chile (CONICYT) through a CAS-CONICYT Joint Postdoctoral Fellowship ; Ministry of Science and Technology of Taiwan ; Ministry of Science and Technology of Taiwan ; Academia Sinica ; Academia Sinica ; National Science Centre, Poland through the SONATA BIS grant ; National Science Centre, Poland through the SONATA BIS grant ; Yunnan Province of China ; Yunnan Province of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Science and Technology Facilities Council of the United Kingdom ; Science and Technology Facilities Council of the United Kingdom ; JCMT project ; JCMT project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences Key Research Program of Frontier Sciences ; Chinese Academy of Sciences Key Research Program of Frontier Sciences ; Natural Science and Engineering Research Council of Canada ; Natural Science and Engineering Research Council of Canada ; Canada Research Chairs program ; Canada Research Chairs program ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; National Commission for Scientific and Technological Research of Chile (CONICYT) through a CAS-CONICYT Joint Postdoctoral Fellowship ; National Commission for Scientific and Technological Research of Chile (CONICYT) through a CAS-CONICYT Joint Postdoctoral Fellowship ; Ministry of Science and Technology of Taiwan ; Ministry of Science and Technology of Taiwan ; Academia Sinica ; Academia Sinica ; National Science Centre, Poland through the SONATA BIS grant ; National Science Centre, Poland through the SONATA BIS grant ; Yunnan Province of China ; Yunnan Province of China |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/54012]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Li, Zongnan; Li, Zhiyuan; Smith, Matthew W. L. |
| 作者单位 | 1.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210023, Peoples R China 2.Nanjing Univ, Key Lab Modern Astron & Astrophys, Nanjing 210023, Peoples R China 3.Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, Wales 4.McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada 5.Chinese Acad Sci, Purple Mt Observ, Nanjing 210023, Peoples R China 6.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210023, Peoples R China 7.Univ Oxford, Subdept Astrophys, Denys Wilkinson Bldg,Keble Rd, Oxford OX1 3RH, England 8.Yonsei Univ, Yonsei Frontier Lab, 50 Yonsei Ro, Seoul 03722, South Korea 9.Yonsei Univ, Dept Astron, 50 Yonsei Ro, Seoul 03722, South Korea 10.Macquarie Univ, Dept Phys & Astron, Balaclava Rd, Sydney, NSW 2109, Australia |
| 推荐引用方式 GB/T 7714 | Li, Zongnan,Li, Zhiyuan,Smith, Matthew W. L.,et al. The HASHTAG project I. A survey of CO(3-2) emission from the star forming disc of M31[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2020,492(1):195-209. |
| APA | Li, Zongnan.,Li, Zhiyuan.,Smith, Matthew W. L..,Wilson, Christine D..,Gao, Yu.,...&Zhu, Ming.(2020).The HASHTAG project I. A survey of CO(3-2) emission from the star forming disc of M31.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,492(1),195-209. |
| MLA | Li, Zongnan,et al."The HASHTAG project I. A survey of CO(3-2) emission from the star forming disc of M31".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 492.1(2020):195-209. |
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来源：国家天文台
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