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Submillimeter/millimeter observations of the molecular clouds associated with Tycho's supernova remnant
Xu, Jin-Long1,2,3; Wang, Jun-Jie1,2; Miller, Martin4
2011-05-01
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
Volume11Issue:5Pages:537-544
AbstractWe 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.
KeywordIsm: Individual Objects (Tycho's Supernova Remnant (g120.1+1.4)) Ism: Molecules Supernova Remnants
Indexed BySCI
Language英语
WOS IDWOS:000290844200004
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/7985
Collection射电天文研究部
Affiliation1.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
Recommended Citation
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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