HST STIS UV Spectroscopic Observations of the Protoplanetary Nebula Hen3-1475
文献类型：期刊论文
| 作者 | Fang, Xuan1,2,6; Gomez de Castro, Ana I.3; Toala, Jesus A.4; Riera, Angels5 |
| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
 |
| 出版日期 | 2018-10-01 |
| 卷号 | 865期号:2页码:6 |
| ISSN号 | 2041-8205 |
| 关键词 | ISM: jets and outflows planetary nebulae: individual (Hen3-1475) stars: AGB and post-AGB |
| DOI | 10.3847/2041-8213/aae20c |
| 英文摘要 | We present UV spectra of the protoplanetary nebula (pPN) Hen 3-1475 obtained with the Space Telescope Imaging Spectrograph (STIS) on board the Hubble Space Telescope (HST). Our deep, low-dispersion spectroscopy enables monochromatic imaging of Hen 3-1475 in ultraviolet (UV) nebular emission lines, the first of such attempt ever made for a pPN. The high spatial resolution of STIS imaging allows an unprecedentedly sharp view of the S-shaped jet, especially the inner NW1 knot, which is resolved into four components in Mg II lambda 2800. Through critical comparison with HST optical narrowband images, we found a negative radial velocity gradient in NW1, from -1550 km s(-1) on its innermost component to similar to-300 km s(-1) on the outermost. Despite their high radial velocities, these components of NW1 mostly show no obvious (or very small) proper motions, indicating that they might be quasi-stationary shocks near the tip of the conical flow along the collimated jet of Hen 3-1475. |
| WOS关键词 | HEN 3-1475 ; EXCITATION ; CANDIDATES ; EMISSION ; OUTFLOW ; JETS |
| 资助项目 | UNAM DGAPA PAPITT project[IA100318] ; Spanish Ministry of Economy and Competitiveness[ESP2014-54243-R] ; Spanish Ministry of Economy and Competitiveness[ESP2015-68908-R] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000446203600002 |
| 资助机构 | UNAM DGAPA PAPITT project ; UNAM DGAPA PAPITT project ; Spanish Ministry of Economy and Competitiveness ; Spanish Ministry of Economy and Competitiveness ; UNAM DGAPA PAPITT project ; UNAM DGAPA PAPITT project ; Spanish Ministry of Economy and Competitiveness ; Spanish Ministry of Economy and Competitiveness ; UNAM DGAPA PAPITT project ; UNAM DGAPA PAPITT project ; Spanish Ministry of Economy and Competitiveness ; Spanish Ministry of Economy and Competitiveness ; UNAM DGAPA PAPITT project ; UNAM DGAPA PAPITT project ; Spanish Ministry of Economy and Competitiveness ; Spanish Ministry of Economy and Competitiveness |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/22908]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Fang, Xuan |
| 作者单位 | 1.Univ Hong Kong, Lab Space Res, Fac Sci, Pokfulam Rd, Hong Kong, Hong Kong, Peoples R China 2.Univ Hong Kong, Fac Sci, Dept Phys, Pokfulam Rd, Hong Kong, Hong Kong, Peoples R China 3.Univ Complutense, Fac Ciencias, AEGORA Res Grp, E-28040 Madrid, Spain 4.Inst Radioastron & Astrofis, UNAM Campus Morelia,Apartado Postal 3-72, Morelia 58090, Michoacan, Mexico 5.Univ Politecn Cataluna, EUETIB, Dept Fis & Enginyeria Nucl, E-08036 Barcelona, Spain 6.Chinese Acad Sci NAOC, Key Lab Opt Astron, Natl Astron Observ, 20A Datun Rd, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fang, Xuan,Gomez de Castro, Ana I.,Toala, Jesus A.,et al. HST STIS UV Spectroscopic Observations of the Protoplanetary Nebula Hen3-1475[J]. ASTROPHYSICAL JOURNAL LETTERS,2018,865(2):6. |
| APA | Fang, Xuan,Gomez de Castro, Ana I.,Toala, Jesus A.,&Riera, Angels.(2018).HST STIS UV Spectroscopic Observations of the Protoplanetary Nebula Hen3-1475.ASTROPHYSICAL JOURNAL LETTERS,865(2),6. |
| MLA | Fang, Xuan,et al."HST STIS UV Spectroscopic Observations of the Protoplanetary Nebula Hen3-1475".ASTROPHYSICAL JOURNAL LETTERS 865.2(2018):6. |
入库方式： OAI收割
来源：国家天文台
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