6 cm OH Masers in Northern Star Formation Regions
文献类型：期刊论文
| 作者 | Qiao,Hai-Hua6,7; Shen,Zhi-Qiang5,6; Breen,Shari L.4; Yang,Kai2,3; Chen,Xi1; Li,Juan5,6 |
| 刊名 | The Astrophysical Journal
 |
| 出版日期 | 2022-04-01 |
| 卷号 | 928期号:2 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ac5820 |
| 英文摘要 | Abstract We have used the Shanghai Tianma Radio Telescope to search for three OH transitions at 4.7 GHz toward 155 northern star formation regions. We detect 4.7 GHz OH masers in 18 star formation regions, 8 of which are reported here for the first time. From these 18 sources, we detect 6 4660 MHz masers, 13 4765 MHz masers, and no 4750 MHz masers. A further 1 source (Sgr B2N) has been re-detected with broad quasi-thermal emission in all three OH lines. W49SW was re-detected with broad quasi-thermal emission at both 4660 and 4750 MHz. One source (W31, G010.626?0.387) was re-detected with quasi-thermal emission at both 4750 and 4765 MHz. One source (G005.885?0.392) was first detected with quasi-thermal emission at 4660 MHz. We have investigated the associations between the detected 4.7 GHz OH masers with ground-state OH masers near 1.7 GHz, 6.7 GHz methanol masers and 22 GHz water masers reported in the literature. We find that the presence of 1665 MHz OH masers is a better indicator of the presence of 4.7 GHz OH masers than 1720 MHz OH masers. The majority of the 4.7 GHz OH masers are associated with 6.7 GHz methanol and/or 22 GHz water masers. We have compared the characteristics of our detections with those reported previously in the literature and found that only five sources are fairly stable. |
| 语种 | 英语 |
| WOS记录号 | IOP:APJ_928_2_129 |
| 出版者 | The American Astronomical Society |
| 源URL | [http://210.72.145.45/handle/361003/13829]  |
| 专题 | 国家授时中心_守时理论与方法研究室 |
| 通讯作者 | Qiao,Hai-Hua |
| 作者单位 | 1.Center for Astrophysics, Guangzhou University, Guangzhou 510006, People's Republic of China 2.Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing 210023, People's Republic of China 3.School of Astronomy and Space Science, Nanjing University, 163 Xianlin Avenue, Nanjing 210023, People's Republic of China 4.SKA Observatory, Jodrell Bank, Lower Withington, Macclesfield, SK11 9FT, UK 5.Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, People's Republic of China 6.Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai, 200030, People's Republic of China 7.National Time Service Center, Chinese Academy of Sciences, Xi’An, Shaanxi, 710600, People's Republic of China; qiaohh@ntsc.ac.cn |
| 推荐引用方式 GB/T 7714 | Qiao,Hai-Hua,Shen,Zhi-Qiang,Breen,Shari L.,et al. 6 cm OH Masers in Northern Star Formation Regions[J]. The Astrophysical Journal,2022,928(2). |
| APA | Qiao,Hai-Hua,Shen,Zhi-Qiang,Breen,Shari L.,Yang,Kai,Chen,Xi,&Li,Juan.(2022).6 cm OH Masers in Northern Star Formation Regions.The Astrophysical Journal,928(2). |
| MLA | Qiao,Hai-Hua,et al."6 cm OH Masers in Northern Star Formation Regions".The Astrophysical Journal 928.2(2022). |
入库方式： OAI收割
来源：国家授时中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。