根据SNe Ia线性膨胀的非均匀宇宙学的观测相容性研究
Study of the observational compatibility of an inhomogeneous cosmology with linear expansion according to SNe Ia
摘要：
目前大多数的宇宙学理论都是建立在一个各向同性和齐次流形与一个依赖于时间的尺度因子相结合的基础上。如果我们假设一个线性膨胀的超圆锥宇宙，那么通过一个适当的变换可以得到一个非齐次度规，这个变换保持了适当的时间。该模型局部趋于平坦的Friedman-Robertson-Walker度规。这项工作的目的是分析所考虑的非齐次度规的观测相容性。为此目的，获得了相应的光度距离，并与超新星宇宙学计划（SCP）的580 SNe Ia的观测结果进行了比较。超圆锥模型的最佳拟合获得χ_0^2 = 562，与标准\LambdaCDM模型的值相同。最后，一个可能的关系，这两种理论之间的发现。
英文摘要：
Most of current cosmological theories are built combining an isotropic and homogeneous manifold with a scale factor that depends on time. If one supposes a hyperconical universe with linear expansion, an inhomogeneous metric can be obtained by an appropriate transformation that preserves the proper time. This model locally tends to a flat Friedman-Robertson-Walker metric with linear expansion. The objective of this work is to analyse the observational compatibility of the inhomogeneous metric considered. For this purpose, the corresponding luminosity distance was obtained and was compared with the observations of 580 SNe Ia, taken from the Supernova Cosmology Project (SCP). The best fit of the hyperconical model obtains χ_0^2 = 562, the same value that the standard \LambdaCDM model. Finally, a possible relationship is found between both theories.
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