value unc_up unc_lo author ref method 0.056 0.0426 0.0426 Masiero 2017AJ....154..168M NEATM 0.072 0.0195 0.0195 Masiero 2011ApJ...741...68M NEATM 0.072 0.0181 0.0181 Masiero 2011ApJ...741...68M NEATM