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arXiv 0909.5258astro-ph.CO
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广义Chaubergin气体的观测约束

Observational Constraints on the Generalized Chaplygin Gas

Sergio del Campo, José Villanueva

摘要:

本文研究了一个经典的宇宙学模型,其中的暗能量分量被认为是广义Chaubergin气体,并考虑了三维几何的曲率。两个参数表征这种流体,即$ν$和$α$参数。我们使用不同的天文数据来限制这些参数。结果表明,约束$ν\lesssim α$与天文观测结果符合得很好。

英文摘要:

In this paper we study a quintessence cosmological model in which the dark energy component is considered to be the Generalized Chaplygin Gas and the curvature of the three-geometry is taken into account. Two parameters characterize this sort of fluid, the $ν$ and the $α$ parameters. We use different astronomical data for restricting these parameters. It is shown that the constraint $ν\lesssim α$ agrees enough well with the astronomical observations.

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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