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| Novae: An Important Source of Lithium in the Galaxy | |
Gao, Jun1; Zhu, Chunhua1 ; Lu, Guoliang2; Yu, Jinlong3; Li, Lin1; Liu, Helei1; Guo, Sufen1
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| 2024-08-01 | |
| Source Publication | ASTROPHYSICAL JOURNAL
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| ISSN | 0004-637X |
| Volume | 971Issue:1Pages:4 |
| Contribution Rank | 2 |
| Abstract | The source of the Galactic lithium (Li) has long been a puzzle. With the discovery of Li in novae, extensive research has been conducted. However, there still exists a significant disparity between the observed abundance of Li in novae and the existing theoretical predictions. Using the Modules for Experiments in Stellar Astrophysics, we simulate the evolution of novae with element diffusion and appropriately increase the amount of 3He in the mixtures. Element diffusion enhances the transport efficiency between the nuclear reaction zone and the convective region on the surface of the white dwarf (WD) during nova eruptions, which results in more 7Be being transmitted to the WD surface and ultimately ejected. Compared to the previous predictions, the abundance of 7Be in novae simulated in our model significantly increases. The result is able to explain almost all observed novae. Using the method of population synthesis, we calculate Li yield in the Galaxy. We find that the Galactic occurrence rate of novae is about 130 yr-1, and about 110 M circle dot Li produced by nova eruption is ejected into the interstellar medium (ISM). About 73% of Li in the Galactic ISM originates from novae and approximately 15%-20% of the entire Galaxy. This means that novae are the important source of Li in the Galaxy. |
| DOI | 10.3847/1538-4357/ad5a10 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | EXPLOSIVE THERMONUCLEAR FORMATION ; GALACTIC LI-7 PRODUCERS ; PROBE WMAP OBSERVATIONS ; CLASSICAL NOVAE ; WHITE-DWARFS ; S-PROCESS ; CONVECTIVE BOUNDARIES ; CHEMICAL-COMPOSITION ; ELEMENT DIFFUSION ; NUCLEAR-REACTION |
| Funding Project | National Natural Science Foundation of China[12163005] ; National Natural Science Foundation of China[U2031204] ; National Natural Science Foundation of China[12373038] ; National Natural Science Foundation of China[12288102] ; National Natural Science Foundation of China[CMSCSST-2021-A10] ; Natural Science Foundation of Xinjiang[2022D01D85] ; Natural Science Foundation of Xinjiang[2022TSYCLJ0006] ; China Manned Space Project[CMSCSST-2021-A10] |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001282097300001 |
| Publisher | IOP Publishing Ltd |
| Funding Organization | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Xinjiang ; China Manned Space Project |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/6899 |
| Collection | 射电天文研究室_理论天体物理研究团组 |
| Corresponding Author | Zhu, Chunhua |
| Affiliation | 1.Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Peoples R China 2.Chinese Acad Sci, Xinjiang Observ, Urumqi 830011, Peoples R China 3.Tarim Univ, Coll Mech & Elect Engn, Alar 843300, Peoples R China |
| Recommended Citation GB/T 7714 | Gao, Jun,Zhu, Chunhua,Lu, Guoliang,et al. Novae: An Important Source of Lithium in the Galaxy[J]. ASTROPHYSICAL JOURNAL,2024,971(1):4. |
| APA | Gao, Jun.,Zhu, Chunhua.,Lu, Guoliang.,Yu, Jinlong.,Li, Lin.,...&Guo, Sufen.(2024).Novae: An Important Source of Lithium in the Galaxy.ASTROPHYSICAL JOURNAL,971(1),4. |
| MLA | Gao, Jun,et al."Novae: An Important Source of Lithium in the Galaxy".ASTROPHYSICAL JOURNAL 971.1(2024):4. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Gao-2024-Novae_ An I（714KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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