FAST Detection of OH Emission in the Carbon-rich Planetary Nebula NGC 7027
文献类型：期刊论文
| 作者 | Ouyang, Xu-Jia6; Zhang, Yong1,5,6 ; Zhang, Chuan-Peng2,3; Jiang, Peng2,3; Nakashima, Jun-ichi1,6; Chen, Xi4,10; Qiao, Hai-Hua7,9; Zhang, Xu-Ying6; Sun, Hao-Min6; Li, Xiao-Hu5
|
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2024-09-01 |
| 卷号 | 972期号:1页码:96 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ad6c35 |
| 产权排序 | 2 |
| 英文摘要 | We present the first detection of the ground-state OH emission line at 1612 MHz toward the prototypical carbon-rich planetary nebula (PN) NGC 7027, utilizing the newly installed ultrawideband (UWB) receiver of the Five-hundred-meter Aperture Spherical radio Telescope (FAST). This emission is likely to originate from the interface of the neutral shell and the ionized region. The other three ground-state OH lines at 1665, 1667, and 1721 MHz are observed in absorption and have velocities well matched with that of HCO+ absorption. We infer that the OH absorption is from the outer shell of NGC 7027, although the possibility that they are associated with a foreground cloud cannot be completely ruled out. All the OH lines exhibit a single blueshifted component with respect to the central star. The formation of OH in carbon-rich environments might be via photodissociation-induced chemical processes. Our observations offer significant constraints for chemical simulations, and they underscore the potent capability of the UWB receiver of FAST to search for nascent PNe. |
| WOS关键词 | ASYMPTOTIC GIANT BRANCH ; MASER EMISSION ; OH/IR STARS ; SPECTRUM ; ABSORPTION ; DISTANCE ; SPECTROSCOPY ; EXCITATION ; EVOLUTION ; ENVELOPE |
| 资助项目 | Guangdong Basic and Applied Basic Research Funding[2024A1515010798] ; National Natural Science Foundation of China (NSFC)[12333005] ; China Manned Space Project[CMS-CSST-2021-A09] ; China Manned Space Project[CMS-CSST-2021-A10] ; Xinjiang Tianchi Talent Program ; Youth Innovation Promotion Association CAS ; NSFC[11903038] ; STFC/UKRI through grant[ST/X001229/1] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001299492200001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | Guangdong Basic and Applied Basic Research Funding ; National Natural Science Foundation of China (NSFC) ; China Manned Space Project ; Xinjiang Tianchi Talent Program ; Youth Innovation Promotion Association CAS ; NSFC ; STFC/UKRI through grant |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/6950]  |
| 专题 | 天体化学研究团组 科研仪器设备产出_我台利用FAST观测数据文章 |
| 通讯作者 | Zhang, Yong |
| 作者单位 | 1.Sun Yat Sen Univ, CSST Sci Ctr Guangdong Hongkong Macau Greater Bay, Zhuhai, Guangdong, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China 3.Guizhou Univ, Guizhou Radio Astron Observ, Guiyang 550000, Peoples R China 4.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China 5.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 6.Sun Yat Sen Univ, Sch Phys & Astron, People's Republ China, 2 Daxue Rd, Zhuhai, Guangdong, Peoples R China 7.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Shaanxi, Peoples R China 8.Univ Manchester, Dept Phys & Astron, Manchester M13 9PL, England 9.Chinese Acad Sci, Key Lab Time Reference & Applicat, Beijing, Peoples R China 10.Guangzhou Univ, Ctr Astrophys, Guangzhou 510006, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ouyang, Xu-Jia,Zhang, Yong,Zhang, Chuan-Peng,et al. FAST Detection of OH Emission in the Carbon-rich Planetary Nebula NGC 7027[J]. ASTROPHYSICAL JOURNAL,2024,972(1):96. |
| APA | Ouyang, Xu-Jia.,Zhang, Yong.,Zhang, Chuan-Peng.,Jiang, Peng.,Nakashima, Jun-ichi.,...&Zijlstra, Albert.(2024).FAST Detection of OH Emission in the Carbon-rich Planetary Nebula NGC 7027.ASTROPHYSICAL JOURNAL,972(1),96. |
| MLA | Ouyang, Xu-Jia,et al."FAST Detection of OH Emission in the Carbon-rich Planetary Nebula NGC 7027".ASTROPHYSICAL JOURNAL 972.1(2024):96. |
入库方式： OAI收割
来源：新疆天文台
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。