value unc_up unc_lo author ref method 0.110 0.0522 0.0522 Masiero 2017AJ....154..168M NEATM 0.147 0.0154 0.0154 Masiero 2011ApJ...741...68M NEATM 0.171 0.0408 0.0408 Masiero 2011ApJ...741...68M NEATM