建立了星系际尘埃的针型模型,该模型能很好地解释高红移超新星的星光通过星系际空间时没有产生明显红化效应的原因.并在此模型的基础上推导出了它的消光公式,从而能够校准超新星的光度距离.
A needle dust as the model of the intergalactic dust is emploied, which is used to explain the reason why the supernova light tracks intergalactic space do not redden obviously. And on the base of this model, we gain its equation of extinction, consequently can adjust the supemova's luminosity distance.