A metal-poor star with abundances from a pair-instability supernova | |
Xing, Qian-Fan8; Zhao, Gang7,8; Liu ZW(柳正伟)5,6,7; Heger, Alexander3,4; Han ZW(韩占文)5,6,7; Aoki, Wako1,2; Chen, Yu-Qin7,8; Ishigaki, Miho N.1,2; Li, Hai-Ning8; Zhao, Jing-Kun8 | |
刊名 | NATURE |
2023-06-22 | |
卷号 | 618期号:7966页码:712-+ |
ISSN号 | 0028-0836 |
DOI | 10.1038/s41586-023-06028-1 |
产权排序 | 第3完成单位 |
文献子类 | Article |
英文摘要 | The most massive and shortest-lived stars dominate the chemical evolution of the pre-galactic era. On the basis of numerical simulations, it has long been speculated that the mass of such first-generation stars was up to several hundred solar masses(1-4). The very massive first-generation stars with a mass range from 140 to 260 solar masses are predicted to enrich the early interstellar medium through pair-instability supernovae (PISNe)(5). Decades of observational efforts, however, have not been able to uniquely identify the imprints of such very massive stars on the most metal-poor stars in the Milky Way(6,7). Here we report the chemical composition of a very metal-poor (VMP) star with extremely low sodium and cobalt abundances. The sodium with respect to iron in this star is more than two orders of magnitude lower than that of the Sun. This star exhibits very large abundance variance between the odd- and even-charge-number elements, such as sodium/magnesium and cobalt/nickel. Such peculiar odd-even effect, along with deficiencies of sodium and a elements, are consistent with the prediction of primordial pair-instability supernova (PISN) from stars more massive than 140 solar masses. This provides a clear chemical signature indicating the existence of very massive stars in the early universe. |
学科主题 | 天文学 ; 恒星与银河系 ; 恒星形成与演化 |
URL标识 | 查看原文 |
出版地 | HEIDELBERGER PLATZ 3, BERLIN, 14197, GERMANY |
资助项目 | National Natural Science Foundation of China[11988101] ; National Natural Science Foundation of China[11890694] ; National Natural Science Foundation of China[12222305] ; National Natural Science Foundation of China[12288102] ; National Natural Science Foundation of China[12090040] ; National Key R&D Program of China[2019YFA0405500] ; JSPS-CAS Joint Research Program ; International Partnership Program of CAS[178GJHZ2022040GC] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2020058] ; JSPS KAKENHI ; Chinese National Development and Reform Commission ; [JP21H04499] ; [JP20H05855] |
WOS关键词 | CHEMICAL SIGNATURE ; MASSIVE STARS ; 1ST STARS ; EVOLUTION ; NUCLEOSYNTHESIS ; POPULATION ; FRAGMENTATION ; YIELDS ; HALO |
WOS研究方向 | Science & Technology - Other Topics |
语种 | 英语 |
出版者 | NATURE PORTFOLIO |
WOS记录号 | WOS:001005804900026 |
资助机构 | National Natural Science Foundation of China[11988101, 11890694, 12222305, 12288102, 12090040] ; National Key R&D Program of China[2019YFA0405500] ; JSPS-CAS Joint Research Program ; International Partnership Program of CAS[178GJHZ2022040GC] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2020058] ; JSPS KAKENHI ; Chinese National Development and Reform Commission ; [JP21H04499] ; [JP20H05855] |
内容类型 | 期刊论文 |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/26140] |
专题 | 云南天文台_大样本恒星演化研究组 |
通讯作者 | Zhao, Gang |
作者单位 | 1.Astronomical Science Program, The Graduate University for Advanced Studies (SOKENDAI), Mitaka, Japan 2.National Astronomical Observatory of Japan (NAOJ), Mitaka, Japan; 3.Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), Sydney, New South Wales, Australia; 4.School of Physics and Astronomy, Monash University, Clayton, Australia; 5.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, China; 6.Yunnan Observatories, Chinese Academy of Sciences, Kunming, China; 7.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing, China; 8.CAS Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China; |
推荐引用方式 GB/T 7714 | Xing, Qian-Fan,Zhao, Gang,Liu ZW,et al. A metal-poor star with abundances from a pair-instability supernova[J]. NATURE,2023,618(7966):712-+. |
APA | Xing, Qian-Fan.,Zhao, Gang.,Liu ZW.,Heger, Alexander.,Han ZW.,...&Zhao, Jing-Kun.(2023).A metal-poor star with abundances from a pair-instability supernova.NATURE,618(7966),712-+. |
MLA | Xing, Qian-Fan,et al."A metal-poor star with abundances from a pair-instability supernova".NATURE 618.7966(2023):712-+. |
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