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arXiv 0802.3453astro-phgr-qchep-th
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银河系自转曲线与膜世界模型

Galactic rotation curves and brane world models

F. Rahaman, M. Kalam, A. DeBenedictis, A. A. Usmani, Saibal Ray

摘要:

在本研究中,星系的平坦旋转曲线被认为是膜世界模型的框架下,其中的4d有效爱因斯坦方程有额外的条款所产生的嵌入的3-膜在$5d$散装。这里已经表明,这些长距离的体引力自由度可以作为一种机制,产生所观察到的星系旋转曲线,而不需要暗物质。本模型的优点是,所观察到的旋转曲线的结果完全从公认的引力的非局部效应,如暗辐射和暗压力下直接使用的条件下的平坦的旋转曲线,并没有调用任何外来物质场。

英文摘要:

In the present investigation flat rotational curves of the galaxies are considered under the framework of brane-world models where the 4d effective Einstein equation has extra terms which arise from the embedding of the 3-brane in the $5d$ bulk. It has been shown here that these long range bulk gravitational degrees of freedom can act as a mechanism to yield the observed galactic rotation curves without the need for dark matter. The present model has the advantage that the observed rotation curves result solely from well-established non-local effects of gravitation, such as dark radiation and dark pressure under a direct use of the condition of flat rotation curves and does not invoke any exotic matter field.

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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