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arXiv 0811.2878astro-ph
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修正牛顿动力学中的N体模拟

N-body simulations in modified Newtonian dynamics

Carlo Nipoti, Pasquale Londrillo, Luca Ciotti

摘要:

我们描述了一些结果与N-MODY,一个代码的N体模拟的无碰撞恒星系统的修正牛顿动力学(MOND)。我们发现MOND中的一些基本动力学过程与牛顿引力中的暗物质有着深刻的不同。特别是,暴力松弛,相位混合和星系合并需要显着更长的时间在MOND比牛顿引力,而动力学摩擦是更有效的MOND系统比在一个等效的牛顿系统与暗物质。

英文摘要:

We describe some results obtained with N-MODY, a code for N-body simulations of collisionless stellar systems in modified Newtonian dynamics (MOND). We found that a few fundamental dynamical processes are profoundly different in MOND and in Newtonian gravity with dark matter. In particular, violent relaxation, phase mixing and galaxy merging take significantly longer in MOND than in Newtonian gravity, while dynamical friction is more effective in a MOND system than in an equivalent Newtonian system with 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。

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