PMO OpenIR
The relation of H2CO, (CO)-C-12, and (CO)-C-13 in molecular clouds
Tang, X. D.1,2; Esimbek, J.1,3; Zhou, J. J.1,3; Wu, G.1,3; Ji, W. G.1,2; Okoh, D.1,4
2013-03-01
Source PublicationASTRONOMY & ASTROPHYSICS
ISSN0004-6361
Volume551Pages:21
Corresponding AuthorTang, X. D.(tangxindi@xao.ac.cn)
AbstractAims. We seek to understand how the 4.8 GHz formaldehyde absorption line is distributed in the MON R2, S156, DR17/L906, and M17/M18 regions. More specifically, we look for the relationship among the H2CO, (CO)-C-12, and (CO)-C-13 spectral lines. Methods. The four regions of MON R2 (60' x 90'), S156 (50' x 70'), DR17/L906 (40' x 60'), and M17/M18 (70' x 80') were observed for H2CO (beam 10'), H110 alpha recombination (beam 10'), 6 cm continuum (beam 10'), (CO)-C-12 (beam 1'), and (CO)-C-13 (beam 1). We compared the H2CO, (CO)-C-12, (CO)-C-13, and continuum distributions, and also the spectra line parameters of H2CO, (CO)-C-12, and (CO)-C-13. Column densities of H2CO, (CO)-C-13, and H-2 were also estimated. Results. We found out that the H2CO distribution is similar to the (CO)-C-12 and the 13CO distributions on a large scale. The correlation between the (CO)-C-13 and the H2CO distributions is better than between the (CO)-C-12 and H2CO distributions. The H2CO and the (CO)-C-13 tracers systematically provide consistent views of the dense regions. Their maps have similar shapes, sizes, peak positions, and molecular spectra and present similar central velocities and line widths. Such good agreement indicates that the H2CO and the (CO)-C-13 arise from similar regions.
KeywordISM: clouds ISM: molecules stars: formation
DOI10.1051/0004-6361/201219809
WOS KeywordCONTINUUM SOURCES ; GALACTIC CENTER ; ABSORPTION ; FORMALDEHYDE ; EMISSION ; REGION
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000316460600028
PublisherEDP SCIENCES S A
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22034
Collection中国科学院紫金山天文台
Corresponding AuthorTang, X. D.
Affiliation1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100080, Peoples R China
3.Chinese Acad Sci, Key Lab Radio Astron, Urumqi 830011, Peoples R China
4.Univ Nigeria, Dept Phys & Astron, Nsukka 410001, Nigeria
Recommended Citation
GB/T 7714
Tang, X. D.,Esimbek, J.,Zhou, J. J.,et al. The relation of H2CO, (CO)-C-12, and (CO)-C-13 in molecular clouds[J]. ASTRONOMY & ASTROPHYSICS,2013,551:21.
APA Tang, X. D.,Esimbek, J.,Zhou, J. J.,Wu, G.,Ji, W. G.,&Okoh, D..(2013).The relation of H2CO, (CO)-C-12, and (CO)-C-13 in molecular clouds.ASTRONOMY & ASTROPHYSICS,551,21.
MLA Tang, X. D.,et al."The relation of H2CO, (CO)-C-12, and (CO)-C-13 in molecular clouds".ASTRONOMY & ASTROPHYSICS 551(2013):21.
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
[Tang, X. D.]'s Articles
[Esimbek, J.]'s Articles
[Zhou, J. J.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Tang, X. D.]'s Articles
[Esimbek, J.]'s Articles
[Zhou, J. J.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Tang, X. D.]'s Articles
[Esimbek, J.]'s Articles
[Zhou, J. 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.