Gran Telescopio Canarias/OSIRIS Deep Spectroscopy of Galactic Compact Planetary Nebulae: PN G048.5+04.2 and PN G068.7+14.8
文献类型：期刊论文
| 作者 | Huang, Haomiao2,3; Fang, Xuan2,3,4,5; Stanghellini, Letizia6; Lee, Ting-Hui1; Guerrero, Martin A.7; Li, Xiaohu4,8; Shaw, Richard9; Liu, Jifeng2,3,10,11 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2025-11-20 |
| 卷号 | 994期号:1页码:2 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ae0a23 |
| 产权排序 | 3 |
| 英文摘要 | We report deep long-slit spectroscopy of two compact Galactic planetary nebulae (PNe), PN G048.5+04.2 and PN G068.7+14.8, obtained using the 10.4 m Gran Telescopio Canarias (GTC). These spectra cover a broad wavelength range of similar to 3630-10370 & Aring;, enabling the detection of numerous emission lines critical for nebular analysis, including [O ii] lambda 3727 and [O iii] lambda 4363 in the blue and [S iii] lambda 6312 and lambda 9069 in the red. Also detected in the spectrum of PN G068.7+14.8 are broad C iii and C iv lines probably due to stellar emission, indicating that the central star of this PN is WC type. The GTC optical-near-IR spectra were analyzed in detail in conjunction with archival Spitzer Space Telescope Infrared Spectrograph mid-IR spectra, and the elemental abundances of the two PNe were determined. Photoionization models were established for the two PNe using cloudy, based on the ratios of line fluxes measured from the GTC spectra. Our best photoionization modeling, in combination with state-of-the-art post-asymptotic giant branch (AGB) evolutionary model tracks, shows that both PNe evolved from low-mass progenitors (<2 M-circle dot) with relatively young ages (<3 Gyr), although their central cores are probably in different evolutionary stages-the central star of PN G068.7+14.8 is still in the process of heating up, while that of PN G048.5+04.2 has already entered the white dwarf cooling track. A comparison with AGB model predictions also constrains the progenitors of both PNe to be of low mass. Moreover, the two PNe are in line with the radial oxygen gradients exhibited by Galactic PN populations, using the most up-to-date distances. |
| WOS关键词 | EFFECTIVE COLLISION STRENGTHS ; ELECTRON-IMPACT EXCITATION ; RADIAL METALLICITY GRADIENTS ; BLANKETED MODEL ATMOSPHERES ; TRANSITION-PROBABILITIES ; RECOMBINATION COEFFICIENTS ; CHEMICAL ABUNDANCES ; FORBIDDEN LINES ; STELLAR YIELDS ; ENERGY-LEVELS |
| 资助项目 | National Key R&D Program of China[2023YFA1607902] ; China Manned Space Program[CMS-CSST-2025-A14] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[2024D01E37] ; National Science Foundation of China[12473025] ; The Tianchi Talents Program (2023) of the Xinjiang Autonomous Region, China ; New Cornerstone Science Foundation through the New Cornerstone Investigator Program |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001614746000001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | National Key R&D Program of China ; China Manned Space Program ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; National Science Foundation of China ; The Tianchi Talents Program (2023) of the Xinjiang Autonomous Region, China ; New Cornerstone Science Foundation through the New Cornerstone Investigator Program |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/8305]  |
| 专题 | 天体化学研究团组 |
| 通讯作者 | Fang, Xuan |
| 作者单位 | 1.Western Kentucky Univ, Dept Phys & Astron, 1906 Coll Hts Blvd 11077, Bowling Green, KY 42101 USA 2.Chinese Acad Sci, CAS Key Lab Opt Astron, Natl Astron Observ, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 5.Univ Hong Kong, Fac Sci, Lab Space Res, Pokfulam Rd, Hong Kong, Peoples R China 6.NSFs NOIRLab, 950 North Cherry Ave, Tucson, AZ 85719 USA 7.Inst Astrofis Andalucia IAA CSIC, Glorieta Astron S-N, E-18008 Granada, Spain 8.Chinese Acad Sci, Xinjiang Key Lab Radio Astrophys, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 9.Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA 10.Beijing Normal Univ, Inst Frontiers Astron & Astrophys, Beijing 102206, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Haomiao,Fang, Xuan,Stanghellini, Letizia,et al. Gran Telescopio Canarias/OSIRIS Deep Spectroscopy of Galactic Compact Planetary Nebulae: PN G048.5+04.2 and PN G068.7+14.8[J]. ASTROPHYSICAL JOURNAL,2025,994(1):2. |
| APA | Huang, Haomiao.,Fang, Xuan.,Stanghellini, Letizia.,Lee, Ting-Hui.,Guerrero, Martin A..,...&Liu, Jifeng.(2025).Gran Telescopio Canarias/OSIRIS Deep Spectroscopy of Galactic Compact Planetary Nebulae: PN G048.5+04.2 and PN G068.7+14.8.ASTROPHYSICAL JOURNAL,994(1),2. |
| MLA | Huang, Haomiao,et al."Gran Telescopio Canarias/OSIRIS Deep Spectroscopy of Galactic Compact Planetary Nebulae: PN G048.5+04.2 and PN G068.7+14.8".ASTROPHYSICAL JOURNAL 994.1(2025):2. |
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来源：新疆天文台
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