A Morphokinematic Study of Galactic High-abundance Discrepancy Factor Planetary Nebulae Based on the VLT/UVES Deep Spectroscopy
文献类型：期刊论文
| 作者 | Huang, Haomiao5,7; Fang, Xuan2,3,5,7; Garcia-Rojas, Jorge1,9; Tu, Zhijun5; Liu, Jifeng4,5,7,8; Liu, Xiaowei6 |
| 刊名 | ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
 |
| 出版日期 | 2026-02-01 |
| 卷号 | 282期号:2页码:42 |
| ISSN号 | 0067-0049 |
| DOI | 10.3847/1538-4365/ae2bfd |
| 通讯作者 | Fang, Xuan(fangx@nao.cas.cn) |
| 英文摘要 | We report detailed analyses of deep, high-resolution spectra of three Galactic planetary nebulae (PNe) with high abundance discrepancy factors (ADFs), Hf 2-2, M 1-42, and NGC 6153, obtained with the Ultraviolet and Visual Echelle Spectrograph on the 8.2 m Very Large Telescope. These spectra were carefully reduced, including rigorous absolute flux calibration, yielding a detection of similar to 410-800 emission lines in each PN. Plasma diagnostics and abundance calculations were performed using nebular lines. In all three PNe, the electron temperatures derived using the collisionally excited lines (CELs) are higher than that yielded by the H i Balmer and Paschen jumps, while the temperatures yielded by the O ii and N ii optical recombination lines (ORLs) are very low, less than or similar to 2000 K, indicating that the heavy-element ORLs probe cold nebular regions. The ORL abundances of N, O, and Ne are systematically higher than the corresponding CEL values, confirming high ADFs in the three objects. Position-velocity diagrams were created, and spatiokinematical studies show that CELs come from the outer nebular regions, while the ORL-emitting regions are close to the nebular center. Additionally, the velocity indicated by CEL line-splitting decreases with ionization potential, which was not obvious in ORLs. These spatial and kinematic differences support two distinct components of ionized gas: a cold, metal-rich component and a warmer component with normal metallicity. Heavy elements are strongly enriched in the cold gas, while its H+ fraction is low but still produces significant H i emission, affecting CEL abundance estimates. |
| WOS关键词 | EFFECTIVE COLLISION STRENGTHS ; ELECTRON-IMPACT EXCITATION ; OPTICAL RECOMBINATION LINES ; NEUTRON-CAPTURE ELEMENTS ; FINE-STRUCTURE LEVELS ; TRANSITION-PROBABILITIES ; CHEMICAL ABUNDANCES ; ATOMIC DATA ; FORBIDDEN TRANSITIONS ; EMISSION-LINES |
| 资助项目 | National Natural Science Foundation of China (NSFC)[12588202] ; National Key R&D Program of China[2023YFA1607902] ; China Manned Space Program[CMS-CSST-2025-A14] ; Ministerio de Ciencia, Innovacion y Universidades (MCIU/AEI)[PID-2022136653NA-I00] ; ERDF A way of making Europe of the European Union ; Chinese Academy of Sciences (CAS, Beijing) ; The Tianchi Talents Program (2023) of the Xinjiang Autonomous Region, China ; ESO program[69.D-0174A] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001679828500001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | National Natural Science Foundation of China (NSFC) ; National Key R&D Program of China ; China Manned Space Program ; Ministerio de Ciencia, Innovacion y Universidades (MCIU/AEI) ; ERDF A way of making Europe of the European Union ; Chinese Academy of Sciences (CAS, Beijing) ; The Tianchi Talents Program (2023) of the Xinjiang Autonomous Region, China ; ESO program |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/8535]  |
| 专题 | 研究单元未命名 |
| 通讯作者 | Fang, Xuan |
| 作者单位 | 1.Inst Astrofis Canarias, San Cristobal la Laguna 38205, Tenerife, Spain 2.Univ Hong Kong, Fac Sci, Lab Space Res, Pokfulam Rd, Hong Kong, Peoples R China 3.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1-St, Urumqi 830011, Xinjiang, Peoples R China 4.Chinese Acad Sci, Natl Astron Observ, New Cornerstone Sci Lab, Beijing 100101, Peoples R China 5.Chinese Acad Sci NAOC, Natl Astron Observ, CAS Key Lab Opt Astron, Beijing 100101, Peoples R China 6.Yunnan Univ, South Western Inst Astron Res, Kunming 650500, Yunnan, Peoples R China 7.Univ Chinese Acad Sci UCAS, Sch Astron & Space Sci, Beijing 100049, Peoples R China 8.Beijing Normal Univ, Inst Frontiers Astron & Astrophys, Beijing 102206, Peoples R China 9.Univ La Laguna, Dept Astrofis, San Cristobal la Laguna 38206, Tenerife, Spain |
| 推荐引用方式 GB/T 7714 | Huang, Haomiao,Fang, Xuan,Garcia-Rojas, Jorge,et al. A Morphokinematic Study of Galactic High-abundance Discrepancy Factor Planetary Nebulae Based on the VLT/UVES Deep Spectroscopy[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2026,282(2):42. |
| APA | Huang, Haomiao,Fang, Xuan,Garcia-Rojas, Jorge,Tu, Zhijun,Liu, Jifeng,&Liu, Xiaowei.(2026).A Morphokinematic Study of Galactic High-abundance Discrepancy Factor Planetary Nebulae Based on the VLT/UVES Deep Spectroscopy.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,282(2),42. |
| MLA | Huang, Haomiao,et al."A Morphokinematic Study of Galactic High-abundance Discrepancy Factor Planetary Nebulae Based on the VLT/UVES Deep Spectroscopy".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 282.2(2026):42. |
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