Molecular Clump Extraction Algorithm Based on Local Density Clustering* * Supported by the National Natural Science Foundation of China.
文献类型：期刊论文
| 作者 | Luo,Xiaoyu2,4; Zheng,Sheng2,4; Huang,Yao2; Zeng,Shuguang2; Zeng,Xiangyun2,3; Jiang,Zhibo1; Chen,Zhiwei1 |
| 刊名 | Research in Astronomy and Astrophysics
 |
| 出版日期 | 2022 |
| 卷号 | 22期号:1 |
| 关键词 | molecular data molecular processes methods: laboratory: molecular |
| ISSN号 | 1674-4527 |
| DOI | 10.1088/1674-4527/ac321d |
| 通讯作者 | Zeng,Xiangyun() |
| 英文摘要 | Abstract The detection and parameterization of molecular clumps are the first step in studying them. We propose a method based on the Local Density Clustering algorithm while physical parameters of those clumps are measured using the Multiple Gaussian Model algorithm. One advantage of applying the Local Density Clustering to the clump detection and segmentation, is the high accuracy under different signal-to-noise levels. The Multiple Gaussian Model is able to deal with overlapping clumps whose parameters can reliably be derived. Using simulation and synthetic data, we have verified that the proposed algorithm could accurately characterize the morphology and flux of molecular clumps. The total flux recovery rate in 13CO (J = 1?0) line of M16 is measured as 90.2%. The detection rate and the completeness limit are 81.7% and 20 K km s?1 in 13CO (J = 1?0) line of M16, respectively. |
| 语种 | 英语 |
| WOS记录号 | IOP:RAA_22_1_015003 |
| 出版者 | National Astromonical Observatories, CAS and IOP Publishing |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/6112]  |
| 专题 | 研究单元未命名 |
| 通讯作者 | Zeng,Xiangyun |
| 作者单位 | 1.Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China 2.Center for Astronomy and Space Sciences, China Three Gorges University, Yichang 443000, China; xyzeng2018@163.com 3.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China 4.College of Electrical Engineering and New Energy, China Three Gorges University, 8 University Road, Yichang, 443000, China |
| 推荐引用方式 GB/T 7714 | Luo,Xiaoyu,Zheng,Sheng,Huang,Yao,et al. Molecular Clump Extraction Algorithm Based on Local Density Clustering* * Supported by the National Natural Science Foundation of China.[J]. Research in Astronomy and Astrophysics,2022,22(1). |
| APA | Luo,Xiaoyu.,Zheng,Sheng.,Huang,Yao.,Zeng,Shuguang.,Zeng,Xiangyun.,...&Chen,Zhiwei.(2022).Molecular Clump Extraction Algorithm Based on Local Density Clustering* * Supported by the National Natural Science Foundation of China..Research in Astronomy and Astrophysics,22(1). |
| MLA | Luo,Xiaoyu,et al."Molecular Clump Extraction Algorithm Based on Local Density Clustering* * Supported by the National Natural Science Foundation of China.".Research in Astronomy and Astrophysics 22.1(2022). |
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