Discovery of a Fast-expanding Shell in the Inside-out Born-again Planetary Nebula HuBi 1 through High-dispersion Integral Field Spectroscopy
文献类型：期刊论文
| 作者 | Rechy-García,J. S.3; Guerrero,M. A.2; Santamaría,E.8; Gómez-González,V. M. A.3; Ramos-Larios,G.8; Toalá,J. A.3; Cazzoli,S.2; Sabin,L.1; Miranda,L. F.2; Fang,X.6,7 |
| 刊名 | The Astrophysical Journal Letters
 |
| 出版日期 | 2020-10-23 |
| 卷号 | 903期号:1 |
| 关键词 | Planetary nebulae Jets Stellar evolution Interstellar medium |
| ISSN号 | 2041-8205 |
| DOI | 10.3847/2041-8213/abbe22 |
| 英文摘要 | Abstract HuBi 1 has been proposed to be member of the rare class of born-again planetary nebulae (PNe), i.e., its central star experienced a very late thermal pulse and ejected highly processed material at high speeds inside the old hydrogen-rich PN. In this Letter we present GTC MEGARA integral field spectroscopic observations of the innermost regions of HuBi 1 at high spectral resolution ?16 km s?1 and multi-epoch subarcsecond images obtained ?12 yr apart. The analysis of these data indicates that the inner regions of HuBi 1 were ejected ?200 yr ago and expand at velocities ?300 km s?1, in excellent agreement with the born-again scenario. The unprecedented tomographic capabilities of the GTC MEGARA high-dispersion observations used here reveal that the ejecta in HuBi 1 has a shell-like structure, in contrast to the disrupted disk and jet morphology of the ejecta in other born-again PNe. |
| 语种 | 英语 |
| WOS记录号 | IOP:2041-8205-903-1-ABBE22 |
| 出版者 | The American Astronomical Society |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/57701]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.Instituto de Astronomía, UNAM, Apdo. Postal 877, Ensenada 22860, B.C., Mexico 2.Instituto de Astrofísica de Andalucía, IAA-CSIC, Glorieta de la Astronomía s/n, E-18008, Granada, Spain 3.Instituto de Radioastronomía y Astrofísica (IRyA), UNAM Campus Morelia, Apartado postal 3-72, 58090, Morelia, Michoacán, Mexico; j.rechy@irya.unam.mx 4.WHU-NAOC Joint Center for Astronomy, Wuhan University, Wuhan, People's Republic of China 5.School of Astronomy and Space Sciences, University of Chinese Academy of Sciences (UCAS), Beijing, People's Republic of China 6.Department of Physics & Laboratory for Space Research, Faculty of Science, University of Hong Kong, Hong Kong, People's Republic of China 7.Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences (NAOC), Beijing, People's Republic of China 8.Instituto de Astronomía y Meteorología, CUCEI, Univ. de Guadalajara, Av. Vallarta 2602, Arcos Vallarta, 44130 Guadalajara, Mexico |
| 推荐引用方式 GB/T 7714 | Rechy-García,J. S.,Guerrero,M. A.,Santamaría,E.,et al. Discovery of a Fast-expanding Shell in the Inside-out Born-again Planetary Nebula HuBi 1 through High-dispersion Integral Field Spectroscopy[J]. The Astrophysical Journal Letters,2020,903(1). |
| APA | Rechy-García,J. S..,Guerrero,M. A..,Santamaría,E..,Gómez-González,V. M. A..,Ramos-Larios,G..,...&Liu,J..(2020).Discovery of a Fast-expanding Shell in the Inside-out Born-again Planetary Nebula HuBi 1 through High-dispersion Integral Field Spectroscopy.The Astrophysical Journal Letters,903(1). |
| MLA | Rechy-García,J. S.,et al."Discovery of a Fast-expanding Shell in the Inside-out Born-again Planetary Nebula HuBi 1 through High-dispersion Integral Field Spectroscopy".The Astrophysical Journal Letters 903.1(2020). |
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