各向异性大气中的辐射流体球
Radiating fluid sphere immersed in an anisotropic atmosphere
摘要：
我们模拟了辐射星以径向热流的形式进行耗散引力坍缩。坍缩恒星的外部由广义Vaidya解描述，该解代表零辐射和弦的混合物。我们的模型概括了以前已知的恒定弦密度大气的结果，包括外部时空的不均匀性。通过利用因果热输运方程的麦克斯韦-Cattaneo形式，我们表明，由于弦密度的不均匀性的存在下，弛豫效应增强。
英文摘要：
We model a radiating star undergoing dissipative gravitational collapse in the form of radial heat flux. The exterior of the collapsing star is described by the generalised Vaidya solution representing a mixture of null radiation and strings. Our model generalises previously known results of constant string density atmosphere to include inhomogeneities in the exterior spacetime. By utilising a causal heat transport equation of the Maxwell-Cattaneo form we show that relaxational effects are enhanced in the presence of inhomogeneities due to the string density.
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