The minimal geometric deformation approach extended
The minimal geometric deformation approach extended
复制标题
最小几何变形方法的扩展
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
R. Rocha
中科院分区：
文献类型：
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作者：
R. Casadio;J. Ovalle;R. Rocha
为了在Randall-Sundrum膜世界框架下研究球对称自引力系统（如恒星或类似天体）周围的外部时空，引入了最小几何变形方法。本文对该方法进行了一致的扩展，其中包含了球对称度规的时间分量和径向分量的修改。作为最简单应用的一个例子，我们得到了一个修正的史瓦西几何，并给出了一个新的解，它可能对描述膜世界中的恒星很有用。
The minimal geometric deformation approach was introduced in order to study the exterior spacetime around spherically symmetric self-gravitating systems, such as stars or similar astrophysical objects, in the Randall–Sundrum brane-world framework. A consistent extension of this approach is developed here, which contains modifications of both the time component and the radial component of a spherically symmetric metric. A modified Schwarzschild geometry is obtained as an example of its simplest application, and a new solution that is potentially useful to describe stars in the brane-world is also presented.