Self-consistent models of triaxial galaxies in mond gravity
文献类型：期刊论文
| 作者 | Wang, You-Gang1,2 ; Wu, Xufen3; Zhao, HongSheng1,3
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| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2008-04-20 |
| 卷号 | 677期号:2页码:1033-1039 |
| 关键词 | galaxies : kinematics and dynamics methods : numerical |
| 英文摘要 | The Bekenstein- Milgrom gravity theory with a modified Poisson equation is tested here for the existence of triaxial equilibrium solutions. Using the nonnegative least- square method, we show that self- consistent triaxial galaxies exist for baryonic models with a mild density cusp, rho similar to Sigma/r. Self- consistency is achieved for a wide range of central concentrations, Sigma similar to 10-1000 M-circle dot pc(-2), representing low to high surface brightness galaxies. Our results demonstrate for the first time that the orbit superposition technique is fruitful for constructing galaxy models beyond Newtonian gravity, and triaxial cuspy galaxies might exist without the help of cold dark matter. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000254898000017 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7377]  |
| 专题 | 国家天文台_星系宇宙学研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Peking Univ, Dept Astron, Beijing 100871, Peoples R China 3.Univ St Andrews, Sch Phys & Astron, SUPA, St Andrews KY16 9SS, Fife, Scotland |
| 推荐引用方式 GB/T 7714 | Wang, You-Gang,Wu, Xufen,Zhao, HongSheng. Self-consistent models of triaxial galaxies in mond gravity[J]. ASTROPHYSICAL JOURNAL,2008,677(2):1033-1039. |
| APA | Wang, You-Gang,Wu, Xufen,&Zhao, HongSheng.(2008).Self-consistent models of triaxial galaxies in mond gravity.ASTROPHYSICAL JOURNAL,677(2),1033-1039. |
| MLA | Wang, You-Gang,et al."Self-consistent models of triaxial galaxies in mond gravity".ASTROPHYSICAL JOURNAL 677.2(2008):1033-1039. |
入库方式： OAI收割
来源：国家天文台
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