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The Impact of Nova Outbursts on the Chemical Abundance of the Interstellar Medium

文献类型：期刊论文

作者He, Guoli2; Zhu, Chunhua2; Lu, Guoliang1,2; Li, Lin2; Guo, Sufen2; Liu, Helei2; Gao, Jun2
刊名RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期2024-10-01
卷号24期号:10页码:105007
关键词ISM: abundances (stars:) novae cataclysmic variables (stars:) white dwarfs
ISSN号1674-4527
DOI10.1088/1674-4527/ad7899
产权排序2
英文摘要Nova outbursts are the results of thermonuclear runaways, which occur when sufficient material accretes on the surfaces of white dwarfs (WDs). Using the MESA code, we construct a detailed grid for carbon-oxygen and oxygen-neon-magnesium novae. By employing population synthesis methods, we conduct a statistical analysis of the distribution of novae in the Milky Way. In our models, on average, a typical nova system may undergo about 8000 eruptions and the Galactic nova rate is similar to 130 yr(-1). The C, N, and O elements in nova ejecta are strongly affected by the mixing degree between WD core and accreted material. Our results show that the average value of C-12/C-13 in nova ejecta is about an order of magnitude lower than that on the surface of a red giant, that for O-16/O-17 is about 5 times lower, and that for N-14/N-15 is about 1.5 times lower. The annual yields of C-13 , N-15, and O-17 from nova ejection are larger than those from AGB stars. This indicates that compared to a red giant, nova eruptions are a more important source of the odd-numbered nuclear elements of C-13 , N-15, and O-17 in the Galactic interstellar medium.
WOS关键词ADIABATIC MASS-LOSS ; CLASSICAL NOVAE ; WHITE-DWARF ; ELEMENTAL ABUNDANCES ; MULTICYCLE EVOLUTION ; ACCRETION RATES ; THERMAL PULSES ; BINARY STARS ; GIANT BRANCH ; CO BANDS
资助项目National Natural Science Foundation of China (NSFC)[12163005] ; National Natural Science Foundation of China (NSFC)[U2031204] ; National Natural Science Foundation of China (NSFC)[12373038] ; China Manned Space Project[CMSCSST-2021-A10] ; Natural Science Foundation of Xinjiang[2022D01D85] ; Natural Science Foundation of Xinjiang[2022TSYCLJ0006]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001329732200001
出版者NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
资助机构National Natural Science Foundation of China (NSFC) ; China Manned Space Project ; Natural Science Foundation of Xinjiang
源URL[http://ir.xao.ac.cn/handle/45760611-7/7049]  
专题射电天文研究室_理论天体物理研究团组
通讯作者Zhu, Chunhua
作者单位1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
2.Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830017, Peoples R China
推荐引用方式
GB/T 7714		 He, Guoli,Zhu, Chunhua,Lu, Guoliang,et al. The Impact of Nova Outbursts on the Chemical Abundance of the Interstellar Medium[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2024,24(10):105007.
APA He, Guoli.,Zhu, Chunhua.,Lu, Guoliang.,Li, Lin.,Guo, Sufen.,...&Gao, Jun.(2024).The Impact of Nova Outbursts on the Chemical Abundance of the Interstellar Medium.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,24(10),105007.
MLA He, Guoli,et al."The Impact of Nova Outbursts on the Chemical Abundance of the Interstellar Medium".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 24.10(2024):105007.

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来源：新疆天文台

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