value unc_up unc_lo author ref method 0.044 0.0317 0.0317 Masiero 2017AJ....154..168M NEATM 0.062 0.0210 0.0210 Masiero 2012ApJ...759L...8M NEATM 0.078 0.0117 0.0117 Masiero 2011ApJ...741...68M NEATM