SDSS Luminous Red Galaxies

The data are taken from the Luminous Red Galaxy sample of the Sloan Digital Sky Survey Data Release 4. From the SDSS spectra we compute the five indices Hbeta, Hgamma_F_,...

本数据集取自斯隆数字巡天（Sloan Digital Sky Survey, SDSS）第四批数据发布的亮红星系（Luminous Red Galaxy）样本。我们从该巡天的光谱数据中计算得到Hβ、Hgamma_F_等五个光谱指数。