{"title":"测定 HD 129174 的表面丰度（π 1 Boo）","authors":"Richard Monier","doi":"10.3847/2515-5172/ad686c","DOIUrl":null,"url":null,"abstract":"The synthesis of the Hg <sc>ii</sc> line at 3983.93 Å, using published hyperfine structure and nuclear shifts, confirms a large overabundance of mercury in HD 129174, about +6.18 dex, which is actually slightly larger than the excess derived in earlier studies. The synthesis of 17 other lines close to the Hg <sc>ii</sc> line and in the spectral range 4400–4500 Å yields abundances for 9 elements. Helium and iron are found to be deficient by −1.12 and −0.097 dex. Magnesium, scandium, titanium, chromium are moderately enhanced by respectively +0.30 dex (Mg) and +1.0 dex (Sc, Ti and Cr). Yttrium and zirconium are very overabundant by +4.00, +2.48 dex respectively.","PeriodicalId":74684,"journal":{"name":"Research notes of the AAS","volume":"1 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Determination of Surface Abundances for HD 129174 (π 1 Boo)\",\"authors\":\"Richard Monier\",\"doi\":\"10.3847/2515-5172/ad686c\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The synthesis of the Hg <sc>ii</sc> line at 3983.93 Å, using published hyperfine structure and nuclear shifts, confirms a large overabundance of mercury in HD 129174, about +6.18 dex, which is actually slightly larger than the excess derived in earlier studies. The synthesis of 17 other lines close to the Hg <sc>ii</sc> line and in the spectral range 4400–4500 Å yields abundances for 9 elements. Helium and iron are found to be deficient by −1.12 and −0.097 dex. Magnesium, scandium, titanium, chromium are moderately enhanced by respectively +0.30 dex (Mg) and +1.0 dex (Sc, Ti and Cr). Yttrium and zirconium are very overabundant by +4.00, +2.48 dex respectively.\",\"PeriodicalId\":74684,\"journal\":{\"name\":\"Research notes of the AAS\",\"volume\":\"1 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-07-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Research notes of the AAS\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3847/2515-5172/ad686c\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Research notes of the AAS","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3847/2515-5172/ad686c","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
利用已公布的超频结构和核移位，对 3983.93 Å 处的 Hg ii 线进行合成，证实 HD 129174 中的汞大量过剩，约为 +6.18 dex，实际上比早期研究得出的过剩量稍大。对靠近 Hg ii 线和 4400-4500 Å 光谱范围内的 17 条其他线的综合分析得出了 9 种元素的丰度。发现氦和铁分别缺乏-1.12 和-0.097 dex。镁、钪、钛、铬的丰度分别为+0.30 dex（镁）和+1.0 dex（钪、钛和铬）。钇和锆的含量非常高，分别为 +4.00 和 +2.48 dex。
Determination of Surface Abundances for HD 129174 (π 1 Boo)
The synthesis of the Hg ii line at 3983.93 Å, using published hyperfine structure and nuclear shifts, confirms a large overabundance of mercury in HD 129174, about +6.18 dex, which is actually slightly larger than the excess derived in earlier studies. The synthesis of 17 other lines close to the Hg ii line and in the spectral range 4400–4500 Å yields abundances for 9 elements. Helium and iron are found to be deficient by −1.12 and −0.097 dex. Magnesium, scandium, titanium, chromium are moderately enhanced by respectively +0.30 dex (Mg) and +1.0 dex (Sc, Ti and Cr). Yttrium and zirconium are very overabundant by +4.00, +2.48 dex respectively.
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