arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0903.4588astro-ph.COastro-ph.GAgr-qchep-ph
收藏

星系中暗物质的分布是其性质的印记

The distribution of the dark matter in galaxies as the imprint of its Nature

Christiane Frigerio Martins

摘要:

如今,宇宙学测量所面临和解释的标准框架被称为λ冷暗物质,它呈现出一个由未知形式的能量和物质主导的宇宙。我的论文致力于研究星系中暗物质的分布,并提出这样一个事实,即围绕星系和星系核心运行的小天体--局域宇宙是研究暗物质的性质以及结构形成和演化所涉及的基础物理的奇妙实验室。我开发测试,旋转曲线的质量建模的基础上,验证星系尺度上的暗物质模型。这些测试已被应用于分析尖点与核心之争的现象学,以及作为引力定律修正的非开普勒旋转曲线现象。我进一步研究了暗物质晕的性质和标度律。我的结论是,银河系的观测为暗物质的性质提供了强烈的印记。

英文摘要:

The standard framework within which cosmological measurements are confronted and interpreted nowadays, called Lambda Cold Dark Matter, presents a Universe dominated by unknown forms of energy and matter. My Thesis is devoted to investigate the distribution of dark matter in galaxies and addresses the fact that the local universe-the small objects that orbit galaxies and the galaxy cores-turns out to be a marvelous laboratory for examining the nature of dark matter and the fundamental physics involved in structure formation and evolution. I develop tests, based on mass modeling of rotation curves, for the validation of dark matter models on galactic scales. These tests have been applied in analyzing the phenomenology of the cusp vs core controversy, and the phenomenon of non-Keplerian rotation curves as modification of the laws of gravity. I further investigate the properties and scaling laws of dark matter halos. My conclusion is that galactic observations provide strong imprints on the nature of dark matter.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑