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FAST Search for Circumstellar Atomic Hydrogen. III. Planetary Nebulae at Galactic Latitudes ÷b÷ ≥ 10°

文献类型：期刊论文

作者Ouyang, Xu-Jia4; Zhang, Yong4,5,6,7; Zijlstra, Albert3,7; Zhang, Chuan-Peng1,8; Nakashima, Jun-ichi4,6; Parker, Quentin A.2,6,7; Li, Xiao-Hu5
刊名ASTRONOMICAL JOURNAL
出版日期2025-08-04
卷号170期号:2页码:129
ISSN号0004-6256
DOI10.3847/1538-3881/adea74
产权排序2
英文摘要The detection of circumstellar atomic hydrogen (H i) via the 21 cm line remains a persistent challenge in planetary nebula (PN) studies, primarily due to contamination from ubiquitous interstellar H i 21 cm emission. In this paper, we report the results of a H i survey of 12 high surface brightness PNe located at Galactic latitudes divided by b divided by >= 10 degrees, performed with the Five-hundred-meter Aperture Spherical radio Telescope, which is currently the most sensitive telescope in the L band. Although the contamination from interstellar emission is still severe, we detect or tentatively detect circumstellar H i 21 cm absorption associated with two PNe: NGC 6905 and NGC 7662. H i exhibits a comparatively high detection frequency in bipolar PNe. We estimate the H i masses of the two PNe to range from 0.01 to 0.14 M-circle dot, resulting in atomic-to-ionized hydrogen ratios of 0.02-0.3. The H i shells have dynamical ages of 2100-2400 yr. Our measurements confirm previous findings that the optical depth of H i decreases with increasing linear radius of the nebula. The mass loss rates traced by the H i absorption are larger than 10(-5) M-circle dot yr(-1), indicating that they originate from the superwind phase at the tip of the asymptotic giant branch.
WOS关键词CIRCUMNEBULAR NEUTRAL HYDROGEN ; H-I ; VLA OBSERVATIONS ; RADIO-CONTINUUM ; HELIX NEBULA ; ENVELOPES ; STARS ; CATALOG ; CO ; ASTROSPHERE
资助项目MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[12473027] ; MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[12333005] ; National Natural Science Foundation of China (NSFC)[2024A1515010798] ; Guangdong Basic and Applied Basic Research Funding[CMS-CSST-2021-A09] ; Guangdong Basic and Applied Basic Research Funding[CMS- CSST-2021-A10] ; China Manned Space Project[2023] ; Xinjiang Tianchi Talent Program[2024D01E37] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[12473025] ; National Science Foundation of China[17326116] ; National Science Foundation of China[17300417] ; Hong Kong Research Grants Council for GRF ; Chinese Academy of Sciences
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001541146700001
出版者IOP Publishing Ltd
资助机构MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809 ; National Natural Science Foundation of China (NSFC) ; Guangdong Basic and Applied Basic Research Funding ; China Manned Space Project ; Xinjiang Tianchi Talent Program ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; National Science Foundation of China ; Hong Kong Research Grants Council for GRF ; Chinese Academy of Sciences
源URL[http://ir.xao.ac.cn/handle/45760611-7/8015]  
专题天体化学研究团组
通讯作者Zhang, Yong
作者单位1.Chinese Acad Sci, CAS Key Lab FAST, Natl Astron Observ, Beijing 100101, Peoples R China
2.Univ Hong Kong, Fac Sci, Chong Yuet Ming Bldg,Pokfulam Rd, Hong Kong, Peoples R China
3.Univ Manchester, Dept Phys & Astron, Manchester M13 9PL, England
4.Sun Yat sen Univ, Sch Phys & Astron, 2 Daxue Rd, Zhuhai, Guangdong, 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, CSST Sci Ctr, Guangdong Hongkong Macau Greater Bay Area, Zhuhai, Guangdong, Peoples R China
7.Univ Hong Kong, Lab Space Res, Hong Kong, Peoples R China
8.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Ouyang, Xu-Jia,Zhang, Yong,Zijlstra, Albert,et al. FAST Search for Circumstellar Atomic Hydrogen. III. Planetary Nebulae at Galactic Latitudes ÷b÷ ≥ 10°[J]. ASTRONOMICAL JOURNAL,2025,170(2):129.
APA Ouyang, Xu-Jia.,Zhang, Yong.,Zijlstra, Albert.,Zhang, Chuan-Peng.,Nakashima, Jun-ichi.,...&Li, Xiao-Hu.(2025).FAST Search for Circumstellar Atomic Hydrogen. III. Planetary Nebulae at Galactic Latitudes ÷b÷ ≥ 10°.ASTRONOMICAL JOURNAL,170(2),129.
MLA Ouyang, Xu-Jia,et al."FAST Search for Circumstellar Atomic Hydrogen. III. Planetary Nebulae at Galactic Latitudes ÷b÷ ≥ 10°".ASTRONOMICAL JOURNAL 170.2(2025):129.

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