不同光度-红移分布模型的鉴别
Discriminating different models of luminosity-redshift distribution
摘要：
宇宙学阶段的开始承载着超新星变暗的直接运动学印记，在不同的晚期宇宙学模型中可能会有很大的不同，即使这些模型能够以可比的统计精度拟合目前的SNe数据。这种效果-有用的原则上区分不同的物理解释的光度红移关系-这里说明了一个教学的例子的基础上的LTB几何。
英文摘要：
The beginning of the cosmological phase bearing the direct kinematic imprints of supernovae dimming may significantly vary within different models of late-time cosmology, even if such models are able to fit present SNe data at a comparable level of statistical accuracy. This effect -- useful in principle to discriminate among different physical interpretations of the luminosity-redshift relation -- is illustrated here with a pedagogical example based on the LTB geometry.
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