A new estimation of manganese distribution for local dwarf spheroidal galaxies
文献类型：期刊论文
| 作者 | Liu, Men-Quan1,2; Wang, Zhong-Xiang2 |
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2016-09-01 |
| 卷号 | 16期号:9 |
| 关键词 | Galaxies: Dwarf Galaxies: Individual (Fornax, Sculptor, Sextans) Galaxies: Evolution Supernovae: General |
| ISSN号 | 1674-4527 |
| DOI | 10.1088/1674-4527/16/9/149 |
| 英文摘要 | The distribution of abundance for iron-peak elements in dwarf spheroidal galaxies (dSphs) is important for galaxy evolution and supernova (SN) nucleosynthesis. Nowadays, manganese (Mn) is one of the most observed iron-peak elements in local dSphs. Studies of its distributions allow us to derive and understand the evolution history of these dSphs. We improve a phenomenological model by a two-curve model including a new initial condition, that includes detailed calculations of SN explosion rates and yields. We compare the results with the observed Mn distribution data for three dSphs: Fornax, Sculpture and Sextans. We find that the model can describe the observed Fe and Mn distributions well simultaneously for the three dSphs. The results also indicate that the initial conditions should be determined by the low metalli city samples in the beginning time of the galaxies and the previous assumption of metellicity-dependant Mn yield of SNIa is not needed when a wide mass range of core-collapse SNe is included. Our method is applicable to the chemical evolution of other iron-peak elements in dSphs and can be modified to provide more detailed processes for the evolution of dSphs. |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000385995800017 |
| 出版者 | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| 源URL | [http://119.78.226.72/handle/331011/32725]  |
| 专题 | 中国科学院上海天文台 |
| 通讯作者 | Liu, Men-Quan |
| 作者单位 | 1.China West Normal Univ, Sch Phys & Space Sci, Nanchong 637009, Peoples R China 2.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Men-Quan,Wang, Zhong-Xiang. A new estimation of manganese distribution for local dwarf spheroidal galaxies[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2016,16(9). |
| APA | Liu, Men-Quan,&Wang, Zhong-Xiang.(2016).A new estimation of manganese distribution for local dwarf spheroidal galaxies.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,16(9). |
| MLA | Liu, Men-Quan,et al."A new estimation of manganese distribution for local dwarf spheroidal galaxies".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 16.9(2016). |
入库方式： OAI收割
来源：上海天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。