PMO OpenIR
Large-field CO(1-0) observations toward the Galactic historical supernova remnants: a large cavity around Tycho's supernova remnant
Chen, X.1,2; Xiong, F.1,2,3; Yang, J.1,2
2017-08-01
Source PublicationASTRONOMY & ASTROPHYSICS
ISSN1432-0746
Volume604Pages:11
Corresponding AuthorChen, X.(xpchen@pmo.ac.cn)
AbstractContext. The investigation of the interaction between the supernova remnants (SNRs) and interstellar gas is not only necessary to improve our knowledge of SNRs, but also to understand the nature of the progenitor systems. Aims. As a part of the Milky Way Imaging Scroll Painting CO line survey, the aim is to study the interstellar gas surrounding the Galactic historical SNRs. In this work, we present the CO results of Tycho's SNR. Methods. Using the 3 x 3 Superconducting Spectroscopic Array Receiver (SSAR) at the PMO 13.7-m telescope, we performed large-field (3 degrees x 2 degrees) and high-sensitivity CO(1-0) molecular line observations toward Tycho's SNR. Results. The CO observations reveal large molecular clouds, stream-like structures, and an inner rim around the remnant. We derived the basic properties (column density, mass, and kinematics) of these objects based on the CO observations. The large molecular clouds individually show an arc toward the remnant center, outlining a large cavity with radii of similar to 0.3 degrees x 0.6 degrees (or 13 pc x 27 pc at a distance of 2.5 kpc) around the remnant. The CO line broadenings and asymmetries detected in the surrounding clouds, the observed expansion of the cavity, in concert with enhanced (CO)-C-12(2-1)/(1-0) intensity ratio detected in previous studies, suggest the interaction of the large cavity with a wind in the region. After excluding the scenario of a large bubble produced by bright massive stars, we suggest that the large cavity could be explained by accretion wind from the progenitor system of Tycho's supernova. Nevertheless, the possibility of the random distribution of a large cavity around Tycho's SNR cannot be ruled out thus far. Further observations are needed to confirm the physical association of the large cavity with Tycho's SNR.
KeywordISM: supernova remnants ISM: clouds ISM: molecules
DOI10.1051/0004-6361/201630003
WOS KeywordACCRETION WIND EVOLUTION ; IA SUPERNOVAE ; MOLECULAR CLOUDS ; PROGENITOR SYSTEMS ; RADIO ASTRONOMY ; MILKY-WAY ; CO SURVEY ; EMISSION ; MODELS ; ENVIRONMENT
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000408480100031
PublisherEDP SCIENCES S A
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22680
Collection中国科学院紫金山天文台
Corresponding AuthorChen, X.
Affiliation1.Chinese Acad Sci, Purple Mt Observ, 2 West Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Key Lab Radio Astron, 2 West Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China
3.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Chen, X.,Xiong, F.,Yang, J.. Large-field CO(1-0) observations toward the Galactic historical supernova remnants: a large cavity around Tycho's supernova remnant[J]. ASTRONOMY & ASTROPHYSICS,2017,604:11.
APA Chen, X.,Xiong, F.,&Yang, J..(2017).Large-field CO(1-0) observations toward the Galactic historical supernova remnants: a large cavity around Tycho's supernova remnant.ASTRONOMY & ASTROPHYSICS,604,11.
MLA Chen, X.,et al."Large-field CO(1-0) observations toward the Galactic historical supernova remnants: a large cavity around Tycho's supernova remnant".ASTRONOMY & ASTROPHYSICS 604(2017):11.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Chen, X.]'s Articles
[Xiong, F.]'s Articles
[Yang, J.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Chen, X.]'s Articles
[Xiong, F.]'s Articles
[Yang, J.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Chen, X.]'s Articles
[Xiong, F.]'s Articles
[Yang, J.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.