天體物理中心報告：Testing the Distance-Duality relation with Galaxy Clusters And TYPE Ia Supernovae

Title： Testing the Distance-Duality relation with Galaxy Clusters And TYPE Ia Supernovae Speaker：楊稀 (北京師範大學) Time：周四，11月28日13：30 Venue：理科樓三樓報告廳 Abstract: The luminosity distance,DL, and the angular diameter distance, DA, are both fundamental observations in astronomy.They satisfy an important relationship known as the distance–duality (DD) relation, DL/DA=(1+z)^2. In this talk, I will introduce how to perform a cosmological-model-independent test for this relation, and the meanings of testing the distance-duality relation.