supported by the National Natural Science Foundation of China (Grant No.11103004);the Foundation for the Authors of National Excellent Doctoral Dissertations of China (Grant No.201225)
By phenomenologically describing the high-redshift star formation history, i.e., ,ρ.(z) oc [(1 +z)/4.5]-% and semi-analytically calculating the fractions of high-redshift Pop I/II and Pop II! stars, we investiga...