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| H2CO and H-110 alpha observations towards NH3 sources | |
Yuan, Ye1,2 ; Esimbek, Jarken1,3; Zhou, Jian Jun1,3; Tang, Xin Di1,2; Wu, Gang1,2,3; Ma, Ying Xiu1,3
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| 2014-08-01 | |
| Source Publication | ASTROPHYSICS AND SPACE SCIENCE
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| Volume | 352Issue:2Pages:521-545 |
| Contribution Rank | 1 |
| Abstract | We observed the H2CO(1(10)-1(11)) absorption lines and H-110 alpha radio recombination lines (RRL) toward 180 NH3 sources using the Nanshan 25-m radio telescope. In our observation, 138 sources were found to have H2CO lines and 36 have H-110 alpha RRLs. Among the 138 detected H2CO sources, 38 sources were first detected. The detection rates of H2CO have a better correlation with extinction than with background continuum radiation. Line center velocities of H2CO and NH3 agree well. The line width ratios of H2CO and NH3 are generally larger than unity and are similar to that of (CO)-C-13. The correlation between column densities of H2CO and extinction is better than that between NH3 and extinction. These line width relation and column density relation indicate H2CO is distributed on a larger scale than that of NH3, being similar to the regions of (CO)-C-13. The abundance ratios between NH3 and H2CO were found to be different in local clouds and other clouds. |
| Keyword | Star Formation Molecular Cloud |
| Subtype | Article |
| DOI | 10.1007/s10509-014-1922-y |
| WOS Headings | Science & Technology ; Physical Sciences |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | MOLECULAR CLOUDS ; DARK CLOUDS ; FORMALDEHYDE DENSITOMETRY ; STARBURST GALAXIES ; STAR-FORMATION ; DENSE CORES ; AMMONIA ; REGIONS ; ABSORPTION ; EMISSION |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000339728100020 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/614 |
| Collection | 射电天文研究室_恒星形成与演化研究团组 科研仪器设备产出_利用南山26米射电望远镜（NSRT）观测数据的文章 |
| Corresponding Author | Yuan, Ye |
| Affiliation | 1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100080, Peoples R China 3.Chinese Acad Sci, Key Lab Radio Astron, Urumqi 830011, Peoples R China |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Yuan, Ye,Esimbek, Jarken,Zhou, Jian Jun,et al. H2CO and H-110 alpha observations towards NH3 sources[J]. ASTROPHYSICS AND SPACE SCIENCE,2014,352(2):521-545. |
| APA | Yuan, Ye,Esimbek, Jarken,Zhou, Jian Jun,Tang, Xin Di,Wu, Gang,&Ma, Ying Xiu.(2014).H2CO and H-110 alpha observations towards NH3 sources.ASTROPHYSICS AND SPACE SCIENCE,352(2),521-545. |
| MLA | Yuan, Ye,et al."H2CO and H-110 alpha observations towards NH3 sources".ASTROPHYSICS AND SPACE SCIENCE 352.2(2014):521-545. |
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| H2CO and H-110 alpha（1946KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-ND | View Application Full Text | |
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