Submillimeter/millimeter observations of the molecular clouds associated with Tycho's supernova remnant
文献类型：期刊论文
| 作者 | Xu, Jin-Long1,2,3 ; Wang, Jun-Jie1,2; Miller, Martin4
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2011-05-01 |
| 卷号 | 11期号:5页码:537-544 |
| 关键词 | ISM: individual objects (Tycho's supernova remnant (G120.1+1.4)) ISM: molecules supernova remnants |
| 英文摘要 | We have carried out CO J = 2 - 1 and CO J = 3 - 2 observations toward Tycho's supernova remnant (SNR) using the KOSMA 3m-telescope. From these observations, we identified three molecular clouds (MCs) around the SNR. The small cloud in the southwest was discovered for the first time. In the north and east, two MCs (Cloud A and Cloud B) adjacent in space display a bow-shaped morphology, and have broad emission lines, which provide some direct evidences of the SNR-MCs interaction. The MCs are revealed at -69 similar to-59 km s(-1), coincident with Tycho's SNR. The MCs associated with Tycho's SNR have a mass of similar to 2.13 x 10(3) M-circle dot. Position-velocity diagrams show the two clouds to be adjacent in velocity, which means cloudcloud collision could occur in this region. The maximum value (0.66 +/- 0.10) of the integrated CO line intensity ratio (I-CO (J=3-2)/ICO J=2-1) for the three MCs agrees well with the previous measurement of individual Galactic MCs, implying that the SNR shock drove into the MCs. The two MCs have a line intensity ratio gradient. The distribution of the ratio appears to indicate that the shock propagates from the southwest to the northeast. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000290844200004 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7985]  |
| 专题 | 国家天文台_射电天文研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.NAOC TU Joint Ctr Astrophys, Lhasa 850000, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 4.Univ Cologne, Inst Phys, D-50937 Cologne, Germany |
| 推荐引用方式 GB/T 7714 | Xu, Jin-Long,Wang, Jun-Jie,Miller, Martin. Submillimeter/millimeter observations of the molecular clouds associated with Tycho's supernova remnant[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2011,11(5):537-544. |
| APA | Xu, Jin-Long,Wang, Jun-Jie,&Miller, Martin.(2011).Submillimeter/millimeter observations of the molecular clouds associated with Tycho's supernova remnant.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,11(5),537-544. |
| MLA | Xu, Jin-Long,et al."Submillimeter/millimeter observations of the molecular clouds associated with Tycho's supernova remnant".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 11.5(2011):537-544. |
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来源：国家天文台
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