First measurement of Mg isotope abundances at high redshifts and accurate estimate of Delta alpha/alpha
文献类型：期刊论文
| 作者 | Agafonova, I. I.1,2; Molaro, P.1; Levshakov, S. A.2,3; Hou, J. L.3 |
| 刊名 | ASTRONOMY & ASTROPHYSICS
 |
| 出版日期 | 2011-05-01 |
| 卷号 | 529期号:1页码:A28 |
| 关键词 | line: profiles methods: data analysis galaxies: abundances quasars: absorption lines quasars: individual: HE0001 2340 |
| 英文摘要 | Aims. Abundances of the Mg isotopes Mg-24, Mg-25, and Mg-26 can be used to test models of chemical enrichment of interstellar/ intergalactic gas clouds. Additionally, because the position of the Mg II lambda lambda 2796, 2803 angstrom lines is often taken as a reference in computations of possible changes of the fine-structure constant alpha, it should be clarified to which extent these lines are affected by isotopic shifts. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | FINE-STRUCTURE CONSTANT ; HEAVY MAGNESIUM ISOTOPES ; GIANT BRANCH STARS ; HAMBURG ESO SURVEY ; LY-ALPHA SYSTEM ; ABSORPTION-LINES ; IA SUPERNOVAE ; BRIGHT QSOS ; VLT/UVES CONSTRAINTS ; NUCLEOSYNTHESIS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000289557200036 |
| 公开日期 | 2015-01-29 |
| 源URL | [http://119.78.226.72//handle/331011/15495]  |
| 专题 | 上海天文台_星系宇宙学重点实验室 |
| 作者单位 | 1.INAF Osservatorio Astron Trieste, I-34131 Trieste, Italy 2.AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia 3.Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, Shanghai 200030, Peoples R China |
| 推荐引用方式 GB/T 7714 | Agafonova, I. I.,Molaro, P.,Levshakov, S. A.,et al. First measurement of Mg isotope abundances at high redshifts and accurate estimate of Delta alpha/alpha[J]. ASTRONOMY & ASTROPHYSICS,2011,529(1):A28. |
| APA | Agafonova, I. I.,Molaro, P.,Levshakov, S. A.,&Hou, J. L..(2011).First measurement of Mg isotope abundances at high redshifts and accurate estimate of Delta alpha/alpha.ASTRONOMY & ASTROPHYSICS,529(1),A28. |
| MLA | Agafonova, I. I.,et al."First measurement of Mg isotope abundances at high redshifts and accurate estimate of Delta alpha/alpha".ASTRONOMY & ASTROPHYSICS 529.1(2011):A28. |
入库方式： OAI收割
来源：上海天文台
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